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Write the equation of a line that is perpendicular to 2x+4y= 14 a need goes through (4,6)

User Frmdstryr
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1 Answer

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Answer: 4x-2y = 4

This can be simplified to 2x-y = 2

Solving for y leads to y = 2x-2

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Step-by-step explanation:

Anything perpendicular to Ax+By = C is of the form Bx-Ay = D

The given equation 2x+4y = 14 tells us that A = 2, B = 4, C = 14.

So Bx-Ay = D updates to 4x-2y = D.

We'll plug in the coordinates of the given point (x,y) = (4,6) to solve for D.

4x-2y = D

D = 4x-2y

D = 4(4)-2(6)

D = 16-12

D = 4

So 4x-2y = D updates to 4x-2y = 4

Optionally, we can divide each term by 2 to go from 4x-2y = 4 to 2x-y = 2

If we wanted to solve for y, then we'd get y = 2x-2

User Jukben
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