SOLUTION: find an eqaution of a line. write an equation using function notation. through(4,-7) perpendicular to 4y=x-8

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Question 712213: find an eqaution of a line. write an equation using function notation.
through(4,-7) perpendicular to 4y=x-8

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
find an equation of a line. write an equation using function notation.
through(4,-7) perpendicular to 4y=x-8
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Given line slope::
y = (1/4)x - 2
slope = 1/4
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Solve of the perpendicular line: -4
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Form of the perpendicular line:
y = mx + b
-7 = -4*4 + b
b = 9
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Equation of the perpendicular line:
y = -4x + 9
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Cheers,
Stan H.