What is the equation of the parabola that has a vertex at # (-9, -2) # and passes through point # (-8,70) #?

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Answer 1 · 2016-07-24T03:27:57

By vertex form, #y= a(x - p)^2 + q#:

#70 = a(-8 - (-9))^2 - 2#

#70 = a(1) - 2#

#70 + 2 = a#

#72 = a#

#y = 72(x + 9)^2 - 2#

Hopefully this helps!