Which statements are true about the graph of the function f(x) = 6x – 4 + x2?

Mathematics

1 answer:

kaheart [24]3 years ago

3 0

Write the function as
f(x) = x² + 6x - 4

Note that
x² + 6x = (x + 3)² - 9

Therefore
f(x) = (x 3)² - 9 - 4
= (x + 3)² - 13

The vertex is at (-3, -13)., and the curve opens upward.
The axis of symmetry is x = -3.

Answer:
The vertex of the function is (-3, 13).
The graph increases over the interval (-3, -∞)

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dolphi86 [110]

Vertex form:
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3 years ago

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tia_tia [17]

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