# SOLUTION: find the vertex, the line of symmetry, the maximum or minimum value of the quadratic function, and graph the function. f(x)=x^2-4x-1 Please help me solve.

Algebra ->  Algebra  -> Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: find the vertex, the line of symmetry, the maximum or minimum value of the quadratic function, and graph the function. f(x)=x^2-4x-1 Please help me solve.      Log On

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 Click here to see ALL problems on Quadratic Equations Question 262790: find the vertex, the line of symmetry, the maximum or minimum value of the quadratic function, and graph the function. f(x)=x^2-4x-1 Please help me solve.Answer by drk(1908)   (Show Source): You can put this solution on YOUR website!First we must put this equation into vertex form. To do that we need to complete the square. I will jump right to vertex form as Now, we have the vertex as (2, -5) line of symmetry is the x-value of the vertex or x = 2. Since the equation starts with (+), then the minimum will be at the vertex at (2,-5) here is the graph