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Describe the graph of the function. y = 9x^2 + 18x – 6 1.) The graph is a parabola with axis of symmetry at x = 1. 2.)The graph is a parabola with axis of symmetry at x = 9. 3.)The graph is a parabola with axis of symmetry at x = 6. 4.)The graph is a parabola with axis of symmetry at x = –1.

Respuesta :

The correct answer is D! When graphed, you can see a parabola with an axis of symmetry at -1.

Answer:

The graph is a parabola with axis of symmetry at x = –1

Step-by-step explanation:

the graph of the function. [tex]y = 9x^2 + 18x - 6 1[/tex]

To find axis of symmetry we use formula

[tex]x=\frac{-b}{2a}[/tex]

given equation is in the form of y=ax^2+bx+c

a= 9, b= 18 and c= 61

plug in the values in the formula

[tex]x=\frac{-b}{2a}[/tex]

[tex]x=\frac{-18}{2(9)}=-1[/tex]

So, axis of symmetry at x=1

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