SOLUTION: Sketch a graph of the quadratic function. f(x) = x^2 - 4x Give the vertex, axis of symmetry, and intercepts. (If an answer does not exist, enter DNE.)

Question 1071424: Sketch a graph of the quadratic function.
f(x) = x^2 - 4x
Give the vertex, axis of symmetry, and intercepts. (If an answer does not exist, enter DNE.)
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Factorization should be enough for this one.

Roots are 0 and 4, so you know symmetry axis is at x=2 (because in the exact middle of the roots) and the vertex will occur also for x=2. You find that value!

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