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What is the axis of symmetry for

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y=3x^2+8x-5?

axis-of-symmetry

asked Aug 28, 2014 in PRECALCULUS by anonymous

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1 Answer

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The equation y = 3x² + 8x - 5

Compare it to standad form of parabola y = ax² + bx + c

a = 3, b = 8, c = - 5

Axis of symmetry x = -b/2a

x = -8/2(3)

x = -8/6

x = -4/3

Axis of symmetry is x = -4/3.

answered Aug 28, 2014 by david Expert

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