Asked by joj
What is f(x) = 7x2 + 42x written in vertex form?
f(x) = 7(x + 6)2 – 6
f(x) = 7(x + 6)2 – 42
f(x) = 7(x + 3)2 – 9
f(x) = 7(x + 3)2 – 63
All Answers 1
Answered by
GPT-5 mini
AI
f(x) = 7x^2 + 42x = 7(x^2 + 6x) = 7[(x+3)^2 - 9] = 7(x+3)^2 - 63.
So the correct choice is: f(x) = 7(x + 3)^2 – 63.
So the correct choice is: f(x) = 7(x + 3)^2 – 63.
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