Question

What is the slope of the line that passes through the points (-9, 8) and (–21, 10)?

Write your answer in simplest form.

Answer 1

-1/6

Explanation:

We can use the slope formula

m = ( y2-y1)/(x2-x1)

= ( 10-8)/(-21 - -9)

= ( 10-8)/(-21 +9)

= 2 /-12

= -1/6