Asked by zach w

perpendicular to line -2x+y=7 contains the point (-4,-2) the equation of line is


Answered by Steve
-2x+y=7 can be written as
y=2x+7, so we see it has slope=2

so, the perpendicular has slope -1/2
now you have a point and a slope:

y+2 = -1/2 (x+4)
and you can massage that as you will.
Answered by zach w
6x+2y=12
find intercept
a circle equation x^2+y^2+4x-4y-1=0 and graph
2)find domain and range f(x)=x^2-4x-5
find vertex of f(x) =x^2+4x-21
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