SOLUTION: Find the Value of r so the line that passes through each pair of points has the given slope. (-4,3), (r,5), M=1/4 This is the formula that I am supposed to use Y2-Y1/X2-X1 Th

Question 665246: Find the Value of r so the line that passes through each pair of points has the given slope.
(-4,3), (r,5), M=1/4
This is the formula that I am supposed to use Y2-Y1/X2-X1
This is what I have -2/-4-r, but I do not know where to go from here
Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!
Slope is as you state
So, using (-4,3) and (r,5)

Yielding

Multiply both sides by (r+4)

Yields
2 =
Multiply both sides by 4
Yields
8 = r+4
Subtract 4 from both sides
r = 4
...
check by plugging r into the coordinates
(-4, 3) and (4, 5)
slope =
....................
Delighted to help.
-Reading Boosters
Wanting for others what we want for ourselves.
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