Question 393359: find the standard form of the equation of the line that passes through the points (9,-3) and (-1,-7)
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! find the standard form of the equation of the line that passes through the points (9,-3) and (-1,-7)
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slope = (-7--3)/(-1-9) = -4/-10 = 2/5
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Form: y = mx+b
You have y = -3 when x=9 and m = 2/5
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-3 = (2/5)(9)+b
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b = -3-(2/5)9
b = -6.6
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Equation:
y = (2/5)x - (33/5)
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To get the standard form, multiply thru by 5 to get:
5y = 2x - 33
-2x+5y = -33
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Cheers,
Stan H.
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