Question

find the slope of the line that passes through each pair of points. (-3,-1) & (-1,5)

Answer 1

Inserting points (-3,-1) and (-1,5) into y = mx + b results in the following:

-1 = -3m + b
5 = -1m + b

3m - 1 = b
1m - 5 = b

b = b
3m - 1 = 1m - 5
3m - 1m = -5 + 1
2m = -4
m = -4/2
m = -2

Thus the slope of the line is -2

Answer 2

thanks

Answer 3

False, the slope is 3

Answer 4

slope formula