You join a paperback book club for $6 and then spend $3 per book. Y = 3x + 6. Explain how to graph the equation, using the y-intercept and slope. Be sure to tell where you place the first point and how to find the location of the second point

Question

anonymous · Answer

the y-intercept is when x = 0.  this corresponds to buying 0 books, so you are left with the constant $6.00 fee just for joining.  hence (0, 6) is a point.

use the slope to determine the location of the next point.