tinyballerina tinyballerina
  • 16-07-2017
  • Mathematics
contestada

Choose the equation below whose axis of symmetry is x = 2.

y = x^2 + 4x + 2
y = x^2 - 4
y = x^2 - 2
y =x^2 - 4x + 2

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AznMaster1
AznMaster1 AznMaster1
  • 16-07-2017
the answer would be the first one
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mominetti
mominetti mominetti
  • 24-08-2019

Answer:

Hi!

The correct answer is y =x^2 - 4x + 2

Step-by-step explanation:

The axis of symmetry is the x-coordinate vertex of the parabola.

The general form to find the axis of symmetry is:

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

For y =x^2 - 4x + 2, a=1, b=−4 and c=2:

[tex]x=-\frac{-4}{2*1} = - \frac{-4}{2} = -(-2) = 2[/tex]

[tex]x = 2[/tex]

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