Question

the slope of (19,-16), (-7, -15)

Answer 1

What you do is you basically subtract the x's and y's i forget exactly how my teacher explained it but this would be how you would do it you would always have the pairs on one side like how the -16 and 19 is on one side, that's what you want.

Answer 2

(19-16), (-7, -15)

(-15-(-16)/(-7-19)

(1)/(-26)

1/-26 is the slope.