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ivanzaharov [21]
3 years ago
8

SAT question Can someone explain to me what this is asking

Mathematics
1 answer:
frozen [14]3 years ago
6 0

Answer:

B

Step-by-step explanation:

The vertex is the turning point of the parabola.

First find the zeros by equating y to zero, that is

(x - 6)(x + 12) = 0

Equate each factor to zero and solve for x

x - 6 = 0 ⇒ x = 6

x + 12 = 0 ⇒ x = - 12

The vertex lies on the axis of symmetry which is situated at the midpoint of the zeros, thus

x_{vertex} = \frac{6-12}{2} = \frac{-6}{2} = - 3

Thus the x- coordinate of the vertex is x = - 3 → B

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Read 2 more answers
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