SOLUTION: help me pls passes through (-2,1), perpendicular to y=4x-11

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Question 1145045: help me pls passes through (-2,1), perpendicular to y=4x-11
Found 3 solutions by ikleyn, josgarithmetic, Alan3354:
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

It is very elementary and basic skill that every student must develop to the level sufficient to solve such problems on his  (or her)
own without asking assistance from outside.

To help you to develop such skills,  the special lesson was created in this site

    - Equation for a straight line perpendicular to a given line and passing through a given point

Find there the complete explanation on how to do it and learn the subject once for all.



Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Equation of line through point (h,k), perpendicular to y=%28n%2Fd%29x-b


y-k=-%28d%2Fn%29%28x-h%29

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
passes through (-2,1), perpendicular to y=4x-11
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Step 1, find the slope of the line.
It's in slope-intercept form, y = mx + b where m = slope & b is the y-intercept
---> slope = 4
The slope of lines perpendicular is the negative inverse, -1/4
That was easy.
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Then use y-y1 = m*(x-x1) where (x1,y1) is the point
y-1 = (-1/4)*(x+2) is an equation of the line.
Put it in any form you like.