SOLUTION: Hi! I need help finding an equation of a line! It is through (-2, 7) and perpendicular to y=1/2x+4

Question 695220: Hi! I need help finding an equation of a line!
It is through (-2, 7) and perpendicular to y=1/2x+4

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
help finding an equation of a line!
It is through (-2, 7) and perpendicular to y=1/2x+4
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The given equation has slope = 1/2.
Any line perpendicular to it must have slope = -2
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Form of Equation: y = mx + b
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You have slope = -2 and y = 7 when x = -2
Solve for "b":
7 = -2*-2 + b
b = 3
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Equation:
y = -2x + 3
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Cheers,
Stan H.
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