Question

How do you find the value of r such the points (8,10), (r,4) with slope m=6?

Answer 1

m=Y2-Y1/X2-X1

m=6

Y2=4

Y1=10

X2=r

X1=8

So,

6=4-10/r-8

6=-6/r-8

r-8=-6/6

r-8=-1

r=-1+8

r=7

IT MAY HELP YOU☺