Find the axis of the graph of the function..f(x) = 4x2 + 8x + 7

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Question:

Find the axis of the graph of the function..f(x) = 4x2 + 8x + 7

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f ( x ) = 4 x² + 8 x + 7a = 4,  b = 8The axis formula is:x = - b / 2 ax = - 8 / (2*4) = - 8 / 8 = -1Answer: The axis of the graph of the function is x = - 1.

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