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Suppose a parabola has an axis of symmetry at x = −2, a maximum height of 7 and also passes through the point (−1, 6). What is the equation of the parabola in vertex form?
5 years ago

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oobleck
from the first sentence, we know
y = a(x+2)^2 + 7
now, use y(-1)=6 to find the value of a.
5 years ago

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