SOLUTION: (x, -7) and (-4, -3); slope: -2/5

Algebra ->  Graphs -> SOLUTION: (x, -7) and (-4, -3); slope: -2/5      Log On


   

Question 923606: (x, -7) and (-4, -3); slope: -2/5
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Do it like this one.
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(2, -8) and (x, 2); slope: -10/3
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Slope m = diffy/diffx
m = (-8-2)/(2 - x) = -10/3
-10/(2-x) = -10/3
-30 = -10(2-x) = -20 + 10x
10x = -10
x = -1