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OpenStudy (anonymous):
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OpenStudy (anonymous):
OpenStudy (anonymous):
I know that theres the answer but I want to know how to do it
OpenStudy (campbell_st):
your answer is correct
OpenStudy (anonymous):
that answer is from the answer book i want to know how they got that
OpenStudy (campbell_st):
ok... this is what I did the vertex form of the parabola is \[y = a(x - h)^2 + k \] the vertex is (0, -2) so h = 0, k = -2 substitute them then to find a, use a point on the curve like (3, 0) or (-3, 0) hope it helps
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