Question 702303
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)