Question

What is the slope of the line that contains the points (8, 3) and (8, –7)?

a. –4
b. c. 0
d. the slope is undefined.

Answer 1

`The\ slope:m=(y_2-y_1)/(x_2-x_1)\\\\(8;\ 3)\to x_1=8;\ and\ y_1=3\\(8;\ -7)\to x_2=8\ and\ y_2=-7\\\\m=(-7-3)/(8-8)=(-10)/(0)-\boxed{!!!}\ /divide\ by\ 0/\\\\Answer:\boxed{d.\ the\ slope\ is\ unde fined}`