Which equation represents the axis of symmetry of the graph of the equation y = x2 + 4x - 5? (1) x = -2 (3) y = -2 (2) x = 4 (4) y = 4

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asked Jul 3, 2016 151k views

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Astroboy · Answer 1 · 2016-07-08T03:03:28+0000

The answer is (1) x=-2. The property of the equation like y=ax2+bx+c is that the axis of symmetry of the graph is x=-b/2a. So for this question, the axis is x=-4/2=-2.

Which equation represents the axis of symmetry of the graph of the equation y = x2 + 4x - 5? (1) x = -2 (3) y = -2 (2) x = 4 (4) y = 4

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