SOLUTION: Let f(x)=2x^2+8x+5. Rewrite the equation for f(x) in the form f(x)=(a(x-h)^2+k.The graph of f(x) is a parabola. Give the coordinates of its vertex.

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Question 315822: Let f(x)=2x^2+8x+5.
Rewrite the equation for f(x) in the form f(x)=(a(x-h)^2+k.The graph of f(x) is a parabola. Give the coordinates of its vertex.

Answer by scott8148(6628)   (Show Source): You can put this solution on YOUR website!
factoring a ___ f(x) = 2(x^2 + 4x) + 5

completing the square ___ f(x) = 2(x^2 + 4x + 4) + 5 - (2 * 4)

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

vertex is ___ (-2 , -3)

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