Question

A direct variation function contains the points (–8, –6) and (12, 9). Which equation represents the function? y = –4/3x y = –3/4x y =3/4x y = 4/3x

Answer 1

We need to get the slope first

m=Y2-Y1/X2-X1

=9-(-6)/12-(-8)

=15/20

=3/4

so the answer is the one with 3/4 slope that is Y=3/4x