Question

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

Answer 1

Answer:

slope = -1/6

Step-by-step explanation:

To find the slope:

1) find the change in the y values and the change in the x values.

change in y = 8 - 10 = -2

change in x = -9 + 21 = 12

2) divide the change in y and the change in x

slope = -2/12 = -1/6

Answer 2

Answer:

-1/6

Step-by-step explanation:

(10 - 8)/(-21 + 9)= 12/-12= -1

y - 8 = -1(x + 9)

y - 8 = -x - 9

y = -x - 1