Question

find the slope of the line through each pair of points. (-1,-19),(20,1)

Answer 1

Plug it into the slope formula:

m=(y2-y1)/(x2-x1)
m=(1-(-19)/(20-(-1)
m=(1+19)/(20+1)
m= 20/21 <=== that is the slope

I hope this helps!
~kaikers