Name: Lori Who is asking: Student Level: Secondary
Question: How did they get to that point? Help. Thank you Hi Lori,If you write the equation of a line in the form
As you noticed the line you want must also have slope 1 and its equation can be written y = x + b. All that remains is to find b. This is where you use the fact that the line you want containt the point (1,2). Thus (1,2) must satisfy the equation y = x + b. Substitute (1,2) into the equation and solve for b. Cheers,Penny
