Answered

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Question 9 of 10
Which describes the graph of y = (x + 7)2 - 9?
=
O A. Vertex at (7.-9)
B. Vertex at (7,9)
C. Vertex at (-7, -9)
D. Vertex at (-7,9)
SUBMIT

Sagot :

Answer:

C

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k ) are the coordinates of the vertex and a is a multiplier

y = (x + 7)² - 9 ← is in vertex form

with h = - 7 and k = - 9

vertex = (- 7, - 9 )

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