Hi,

Write the equation of the line which passes through (2, –3) and is perpendicular to y = 4x + 7  ( m = 4/1)

New Line: m = -1/4 (negative reciprocal of 4/1)

 y = (-1/4)x + b

-3 = (-1/4)2 + b

 -5/2 = b

 y = (-1/4)x -7/2    or   x + 4y = -14



 

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