Question 202245: (3,1)
(-4,15)
Answer by RAY100(1637)   (Show Source):
You can put this solution on YOUR website! Remember, m= (y2-y1)/x2-x1),,,,and ,,,y=mx+b
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(3,1),,,(-4,15)
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m= (15-1) / (-4-3) = 14/-7 = -2
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y=mx+b = -2x +b
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subst (3,1)
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1=-2(3) +b
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7=b
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y=-2x +7
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check,,,(3,1),,,1=-2(3) +7=1,,ok
(-4,15),,,15 = -2(-4) + 7 = 15,,,ok
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