Mathematics: 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

Choose the equation below whose axis of symmetry

briiannamb

14.01.2022

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:

$x=-\frac{-b}{2*a}$

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

$x=-\frac{-4}{2*1} = - \frac{-4}{2} = -(-2) = 2$

x = 2

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chjam265

13.03.2020

Reflecting something over the x-axis is just converting (x,y) to (x,-y). In this case, your answer is (2,4). : )

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