SOLUTION: Find value of r (-4,3),(r,5) m=1/4

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Question 1055342: Find value of r

(-4,3),(r,5) m=1/4
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
(-4,3),(r,5) m=1/4
change in y=2
change in x=r+4
that ratio is 1/4
so
2/(r+4)=1/4
cross-multiply
r+4=8
r=4
the points are (-4,3) and (4,5). The slope is 2/8=1/4