Question

Darren is finding the equation in the form y = m x + b for a trend line that passes through the points (2, 18) and (–3, 8). Which value should he use as b in his equation?
–34
–19
2
14

Answer 1

First find the slope: m = (18 − 8)/(2 − (−3)) = 10/5 = 2.
Use a point to find b: 18 = 2(2) + b → b = 18 − 4 = 14.

Answer: 14.