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Identify an equation in point slope form for the line perpendicular to

y = -4x - 1 that passes through (-2,7).

1 Answer

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Point slope form is y2-y1=m(x2-x1).

The slope m that is perpendicular to y=-4x-1 will be 1/4 (the opposite reciprocal). Then you can use (-2,7) as the x and y values to plug into the formula:

y-7=1/4(x+2) is the answer.
User Gjon
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