SOLUTION: How do I solve (r,-5),(3,13),m=8?

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Question 1169975: How do I solve (r,-5),(3,13),m=8?
Found 2 solutions by josgarithmetic, MathLover1:
Answer by josgarithmetic(39628)   (Show Source): You can put this solution on YOUR website!

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Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

if (,) and (,) are two points on same line, and is a slope
then











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