







The equation of a line 
20200105 

From coco: Good afternoon
If relationship between total cost and the number of units made it linear ,and if costs increases by 7$ for each additional unit made ,and if the total cost of 10 units is 180$ .
Find the equation of the relationship b/n total cost (Y) & number of unit made (x). Answered by Penny Nom. 





The equation of a line 
20191210 

From Jourdan: Suppose a mining company will supply 96000 tons of ore per month if the price is 80 dollars per ton but will supply 70500 tons per month if the price is 20 dollars per ton. Assuming the supply function is of the form y = m x + b , find the slope, m and yintercept, b Answered by Penny Nom. 





The equation of a line 
20140516 

From Michael: Find the equation of a line that passes through (2,1); the sum of the x and yintercepts is 2. (There are two answers) Answered by Penny Nom. 





A question concerning two lines 
20140509 

From Hela: The equation of the line L is 6x+5y=3, and the equation of line Q is 5x6y=0, which statement below about the line is true?
A) same y intercept
B)parallel
C) Same x intercept
D)perpendicular Answered by Penny Nom. 





A quadratic equation 
20131127 

From corinanna: Hi,
How do you find a quadratic equation given the domain & range,
& or the yintercept? Answered by Penny Nom. 





A union and interception problem 
20131019 

From Zakir: Sir, I have some problem in union there is a Question in a book
find B set if A={2,4,6,8} , AUB={2,4,5,6,7,8} and A intersection B={6,8}
plz tell me how can I find the B set Answered by Penny Nom. 





An equation in slopeintercept form 
20130812 

From Brittney: write an equation in slopeintercept form of the line that is parallel to the grapg of y=3/4x+6 passes through 8,5 Answered by Penny Nom. 





An equation in the form Ax+By=C 
20110728 

From Mike: I need to write an equation in the form Ax+By=C
The points I was given are (5,0) and (3,5)
I know how to find the slope I got 5/8 and wrote it out as y=(5/8)x+b however I'm not quite sure where to go from here.
Any help would be greatly appreciated. Answered by Penny Nom. 





The intercept form 
20110104 

From sussie: How do you find the intercept form of y=X^22x3? Answered by Penny Nom. 





The circle centered at (2,4) with radius 3 
20100918 

From lupe: Consider the circle centered at (2,4) with radius 3. Write the equation
of this circle sketch its graph, and find the exact coordinates of its intercepts.
xintercept
yintercept using the quadratic equation? Answered by Penny Nom. 





x and y intercepts 
20100510 

From connor: im not sure how to find the x intercept in questions like
2x+3y12=0
5x2y12=0
if you could show me how to find the x and the y intercepts out of this equation that would be great
thanks connor Answered by Penny Nom. 





A line through the yintercepts 
20091201 

From Rogerson: Find the equation of the line through yintercept of the lines 3x + 4y = 12 and 3x  y = 9. Answered by Penny Nom. 





The slopeintercept form 
20090911 

From Shelby: Write an equation in slopeintercept form of the line that is parallel to the graph of 3y4x=1 and passes through (0,6) Answered by Penny Nom. 





The equation of a line 
20090311 

From Teresa: Write an equation in slopeintercept form that has a horizontal intercept of 7/3 and a vertical intercept of 7/9 Answered by Harley Weston. 





Intercepts in a Quadratic Function 
20090222 

From Barb: I have a question I need help with please. What are the number of x and y intercepts that quadratic function can have and why?
Thanks. Answered by Janice Cotcher. 





A line is perpendicular to another line 
20090116 

From Greg: A line is perpendicular to the line y=2x+3 and has the same xintercept as x+3y+10.
Find the equation of this line. Express your answer in the form of y=mx+b. Justify your answer. Answered by Robert Dawson. 





The slope intercept form 
20090111 

From Norma: write equation in slope intercept form and then find the slope and yintercpet of the corresponding line.
please show step by step
1). 2x3y9=0 and 2). 3x4y+8=0 Answered by Penny Nom. 





A line in slope intercept form 
20081208 

From laurie: the question: Write and equation of the line that passes through the point
and has the give slope. Then rewrite the equation in slope intercept form.
(2, 5 ) m= 3 Answered by Penny Nom. 





Graphing Rational Functions 
20081205 

From Bahra: The question in my homework is: Find all vertical, horizontal, and slant
asymptotes, x and yintercepts, and symetries, and then graph each
function. Check your work with a graphing calculator.
y=3/x+3 meanng: ( y= 3 over x+3) Answered by Janice Cotcher. 





Intercepts 
20081102 

From robert: What is the sum of the xintercept and yintercept of the line 3x3y=24? Answered by Stephen La Rocque. 





Intercepts 
20080911 

From megan: When I have problems like y=x(x^23), to find the x and yintercepts, I set each one to 0. But where do I go from there? Answered by Penny Nom. 





A line through two points 
20080910 

From Conor: Find the equation of the straight line which passes through the points (2,14) and (8,1) Answered by Penny Nom. 





A line parallel to y= 1/2x + 5 
20080903 

From Michelle: Find the equation of a line parallel to y= 1/2x + 5 if the required line passes through ( 3,4) Answered by Penny Nom. 





The xintercepts of f(x)= 5sin (4x+pi/4) 
20080603 

From Tom: Hi, how would I find where the x intercept in this function f(x)= 5sin (4x+pi/4)? Answered by Janice Cotcher and Harley Weston. 





The slope intercept form 
20080411 

From Dave: Hi, why is there a yintercept in the slope intercept form?What does the yintecept have to do with the equation? Answered by Penny Nom. 





The equation of a line 
20080217 

From Jennifer: Given the point A(3,2)B(5,8) find the equation of the line AB ( in standard form ) Answered by Penny Nom. 





The equation of a line 
20080120 

From Sara: The question is:
Write the equation of a line that is parallel to y=3x2 through the point (5,9).
I think the correct equation for this is y=3x+24.
But I have to write it in standard form, and I can't seem to figure out how to do that. Please answer soon! Thanks! Answered by Stephen La Rocque and Penny Nom. 





Why do they use the letter b in y=mx+b? 
20071115 

From virginia: why do they use the letter b in y=mx+b?
im asking this because my math teacher said he will give extra points to anyone who finds this out first
and i was hoping you guys would be the ones who could help. Answered by Penny Nom. 





Intercepts 
20070915 

From Bruce: The equation is x^212.
I need to find the xy intercepts and horizontal intervals (increasing & decreasing)
I would have thought the y intercept would be (0,12) however the book came up with something different. Answered by Penny Nom. 





Intercepts 
20070913 

From Ashley: 6x+y=9
how do you do the x and y intercept of this equation Answered by Jami Peterson. 





The xintercept 
20070901 

From Bianca: What is the xintercept of the graph of y=1/2x+b? Answered by Stephen La Rocque. 





Equation of a line 
20070603 

From Mahrukh: Hi i would like to know how to find the equation of a line, when you are given a piont (3, 1) and the x intercept which is 1? Answered by Penny Nom. 





Graphing a line 
20070323 

From mitchell: Graph each equation.
y = 2x + 4 Answered by Jaymi Peterson and Haley Ess. 





yintercept form 
20070316 

From Ken: Simple way on how to convert to & from yintercept form & Std. form.
Eg: Convert into yintercept form: 3x+4y+7=0,
Eg.: Convert into Std. Form: y=1/2x +3, y=50x +300. I would appreciate your
help in this matter, as I find it hard to understand.
Kind Regards: Ken Answered by Penny Nom. 





Finding the xintercept 
20070302 

From Ash: Y = 1/100X^2 =27/10X +0 = 0 THE Y INTERCEPT IS 50 HOW DO I FIND THE X INTERCEPT Answered by Gabriel Potter. 





The slopeintercept form 
20070104 

From Earnestine: Given a line containing the points (1,4), (2,7), and (3,10) determine the slopeintercept form of the equation, provide one additional point on this line, and graph the function. Answered by Penny Nom. 





The slopeintercept form 
20061217 

From Anthony: I'm really confused with this, tried to figure it out on my own but i can't seem to grasp it here's the problem: Two points are given a. Write an equation in slopeintercept form for the line containing the two points. b. Graph the line from Part a and check that both points are on the line. Answered by Penny Nom. 





The slopeintercept form 
20061108 

From Kilihea: I need to graph this equation but first need to turn it into a slopeintercept form. 6x  3y = 3 I would really appreciate it if you could help me turn it into a slopeintercept form. Answered by Penny Nom. 





Convert a standard form to a slope intercept form 
20060914 

From Maiko: I need to know step by step procedures to convert a standard form to a slope intercept form? Answered by Penny Nom. 





x and y intercepts 
20060813 

From Jennefer: y=x/(x^{2}+1) and I need to find the x and y intercepts. Answered by Stephen La Rocque. 





How old is y = mx + b? 
20060705 

From Beckie: I am taking intermediate algebra this summer (Math 95), and have a question for you. My instructor will award extra credit points to any of us who find out how old the formula
y = mx+b is. Would you happen to know the answer? Answered by Penny Nom. 





How do you graph 3x + 6y = 9 by axis intercepts? 
20060522 

From Crystal: How do you graph 3x + 6y = 9 by axis intercepts? Answered by Penny Nom. 





The y intercept 
20060520 

From Zeel: how do you solve for the y intercept when the equation is y=1.5x? Answered by Leeanne Boehm. 





Intercepts and slope 
20060115 

From Anthony: Given 1.7x + 0.8y=7.1:
(a) state the intercepts and slope for the graph
(b) Draw the graph Answered by Penny Nom. 





X and Y intercepts 
20050414 

From David: Hi, i would like to know if you can answer this question for me
Find the x and y intercept fo y = 8x  5 Answered by Penny. 





Intercepts 
20031104 

From A student: I am totally confused on how to determine intercepts of an equation and then to graph the line. For example, how to determine the intercepts of 2x3y12=0. Answered by Penny Nom. 





Intercepts 
20030108 

From Nay: my name is nay 8th grade student how do i figure out an intercep and does it always have to have (0, ) or ( ,0)? Answered by Penny Nom. 





x intercepts 
20021110 

From Laura: Find the x intercepts for the graph of the equation. x^{ 2}  x  12 = 0 Answered by Penny Nom. 





Intercepts 
20020904 

From Tamara: Why is it that the x intercept the value of y is 0 and at the y intercept the value of x is 0? Answered by Leeanne Boehm. 





x and yintercepts 
20020310 

From A student: I have the problem f(x)= ^{X5}/_{X2+X6} and I have to find the vertical asymtope, horizontal asymtope, xintercept, and yintercept. And graph the problem. I am having problems finding the yintercept. Answered by Harley Weston. 





Slope intercept form 
20011127 

From A student: what is slope intercept form? Answered by Penny Nom. 





Lines in the plane 
20011021 

From Greg:
*If the line with equation 3x4ky= 16 has yintercept 2, find k. *Write the equation of the line passing through (2,5) and perpendicular to the line passing through (2,4) and (6,1) Answered by Penny Nom. 





Three points on a line 
20000825 

From Casey: I am trying to find the slope and yintercept of an equation. I have THREE x values and THREE y values. How do you do it? Help! Answered by Penny Nom. 





Yintercept 
20000103 

From Kayla Boylan: How do you use and find the yintercept? Answered by Penny Nom. 





Intercepts 
19990924 

From Cassandra: My book says to find where the X and Y intercept, i dont understand who to do this problem. Can you please help here is the problem. it didnt quite explain the instructions. Answered by Penny Nom. 





Intercepts 
19990829 

From Sally Rickerson: I am looking for any intecepts. How do I solve: y=x^2 square root of (9x^2) Answered by Harley Weston. 





y=mx+b 
19990415 

From Selena Royle: When solving a problem on slopes,and in the formula y=mx+b what do the M and B stand for? Why M and B? Answered by Penny Nom. 





Yintercept 
19980227 

From Don Trumpet: What is the Yintercept for the problem:Y = 2(x+2) + 9 Answered by Harley Weston. 





Equation of a line 
19970408 

From Susan Gregson: I am a secondary school teacher. My students and I would like to know why the letters m and b are traditionally used to stand for slope and Yintercept in the standard form of an equation. Was this an arbitrary choice? Who made it? Are the letters from Greek ot Latin words? Answered by Harley Weston. 

