Question

Which equation best describes the line of best fit?

A)  y=6x +10



B)  y=x− 10

C)  y=10x +70

D)  y= 2/3 x

Answer 1

The y-value changes from 10 to 70 as the x-value changes from 0 to 10. That makes the slope (70 -10)/(10 -0) = 6, and the y-intercept = 10.

Selection A is the appropriate equation.