2024 UPDATED!!! Which functions have an axis of symmetry of x = –2? Check all that apply. f(x) = x2 + 4x + 3 f(x) = x2 – 4x – 5 f(x) = x2 + 6x + 2 f(x) = –2x2 – 8x + 1 f(x) = –2x2 + 8x

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Which functions have an axis of symmetry of x = –2? Check all that apply. f(x) = x2 + 4x + 3 f(x) = x2 – 4x – 5 f(x) = x2 + 6x + 2 f(x) = –2×2 – 8x + 1 f(x) = –2×2 + 8x – 2

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f (x) = x ^ 2 + 4x + 3

f (x) = -2x ^ 2 - 8x + 1

Step by step explanation:

f (x) = x ^ 2 + 4x + 3

To find the axis of symmetry we apply the formula

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

a = 1, b = 4

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

Axis of symmetry at x = -2

f (x) = x ^ 2 - 4x - 5

a = 1, b = -4

$x = frac {4} {2 (1)} = 2$

Axis of symmetry at x = 2

f (x) = x ^ 2 + 6x + 2

a = 1, b = 6

$x = frac {-6} {2 (1)} = - 3$

Axis of symmetry at x = -3

f (x) = -2x ^ 2 - 8x + 1

a = -2, b = -8

$x = frac {8} {2 (-2)} = - 2$

Axis of symmetry at x = -2

f (x) = -2x ^ 2 + 8x - 2

a = -2, b = 8

$x = frac {-8} {2 (-2)} = 2$

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