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Pachacha [2.7K]
3 years ago
5

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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