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MarxZelonis719 MarxZelonis719
  • 09-06-2015
  • Mathematics
Answered



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

Verified Answer :

lulu1991
lulu1991 lulu1991
  • 19-06-2015

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.

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