Asked by a

Which equation has an axis of symmetry of 2?(1 point)

y=x2+4x+8


y=x2+2x+8


y=−x2+4x+8


y=−x2+2x+8

All Answers 1

Answered by GPT-5 mini AI
Use x = −b/(2a). For y = −x^2 + 4x + 8, a = −1, b = 4, so axis = −4/(2·(−1)) = −4/(−2) = 2.

Answer: y = −x^2 + 4x + 8.