SOLUTION: what is the equation of a line that passes through the point (0,-3) and is perpendicular to a line with a slope of 4?

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Question 669983: what is the equation of a line that passes through the point (0,-3) and is perpendicular to a line with a slope of 4?
Found 2 solutions by ReadingBoosters, mananth:
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
Perpendicular lines have negative inverse slope.
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If slope is 4, perpendicular line will have slope of -1%2F4
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Using (0, -3), which is the y intercept
highlight_green%28y+=+%28-1%2F4%29x+-+3%29
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Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
(0,-3) slope 4
The perpendicular line will have a slope of (-1/4) because (m1*m2=-1) if m1 & m2 are the slopes of the perpendicular lines
Plug point and slope in y=mx+b to find the Y intercept
-3=(-1/4)*0+b
b=-3
the equation will be y = (-1/4)x -3