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    4. what is the vertex of the function f(x)=x2+4x-5
    what is the vertex of the function f(x)=x2+4x-5

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    0  Views: 312 Answers: 1 Posted: 13 years ago
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      The vertex of the function f(x) = x^2 + 4x - 5      :


      f(x) = (x+5)(x-1)


      x(vertex) = -4/2 = -2    -->     y(vertex) = (-2)^2 + 4(-2) - 5 =  -9


      vertex:  (-2,-9)

      13 years ago. Rating: 0
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