Question

f(x)=3x² + 18x +3
What is the vertex of the parabola?

Answer 1

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Step-by-step explanation:

f(x) = 3x^2 + 18x - 3

f(0) = 3(0)^2 + 18(0) - 3

f(0) = -3

So the Y intercept is (0,-3)?? Then I got lost trying to solve the rest of the problem.