Quandaries
and Queries 

how do you solve y=1\3x+3 and y=1\3x3 by graphing? 

Hi, I think it is realy important with equations of lines that you understand what the numbers mean. This makes it very easy to graph the equation and, in particular, solve the problem you have. You have two equations of the form
where m and b are numbers. It is these two numbers, m and b, that tell you how to graph the line.
The two lines that you have both have slope ^{1}/_{3}.
This means that the line crosses the yaxis at the point where y=b. In other words (0,b) is on the line. Your first line crosses the yaxis at (0,3) and your second line crosses the yaxis at (0,3) What do you know about two lines with the same slope? Penny 

