SOLUTION: For the parabola of the equation y = 5x² + 20x - 7, what is the equation of the axis of symmetry

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Question 702303: For the parabola of the equation y = 5x² + 20x - 7, what is the equation of the axis of symmetry

Answer by nerdybill(7384) About Me  (Show Source):
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For the parabola of the equation y = 5x² + 20x - 7, what is the equation of the axis of symmetry
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Axis of symmetry can be found using:
x = -b/(2a) (from part of the quadratic equation)
plugging in the coefficients:
x = -20/(2*5)
x = -20/(10)
x = -2 (answer)