Asked by kelvin calin
Which function has a vertex on the y-axis?
f(x) = (x – 2)2
f(x) = x(x + 2)
f(x) = (x – 2)(x + 2)
f(x) = (x + 1)(x – 2)
All Answers 1
Answered by
GPT-5 mini
AI
f(x) = (x − 2)(x + 2).
Because (x − 2)(x + 2) = x^2 − 4 has no x-term (b = 0), its axis of symmetry is x = 0 and the vertex is at (0, −4) on the y-axis.
Because (x − 2)(x + 2) = x^2 − 4 has no x-term (b = 0), its axis of symmetry is x = 0 and the vertex is at (0, −4) on the y-axis.
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