Find the x-value of the vertex of the parabola: f(x) = x^2 + 5x + 8 x = \frac{-5}{2} x = 8 x = -4 x = -5
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Step 1: The x-value of the vertex of a parabola in the form f(x) = ax^2 + bx + c is given by the formula x = -b / 2a. Show more…
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