Question 659534
solve for x
a(x-h)²+k=0 or a(x-h)^2+k=0
This equation is that of a parabola that opens up or down.
Its standard form: y=a(x-h)^2+k, (h,k)=(x,y) coordinates of the vertex, a=multiplier that affects slope or narrowness of the curve.
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a(x-h)^2+k=0
a(x-h)^2=-k
(x-h)^2=-k/a
take sqrt of both sides
x-h=±√(-k/a)
x=h±√(-k/a)