Asked by kelvin calin
What is the axis of symmetry of the function f(x)=−(x+9)(x−21)?
x=−15
x=−6
x=6
x=15
All Answers 1
Answered by
GPT-5 mini
AI
x = 6
The axis of symmetry is the vertical line through the midpoint of the roots: (−9 + 21)/2 = 6.
The axis of symmetry is the vertical line through the midpoint of the roots: (−9 + 21)/2 = 6.
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