Question 267384: Find the vertex. Is the vertex a maximum or minimum point? Graph the parabola.
a(x) = x^2 -4x +4 Answer by drk(1908) (Show Source):
You can put this solution on YOUR website! Factoring the original equation, we get
(x-2)*(x-2)
However, that can be expressed as
(x-2)^2
SInce there is no number after the squared binomial, the vertex form of this is
y = (x-2)^2 + 0
The vertex is "opposite of the inside number, outside number"
so the vertex is (2,0)
The vertex shows us a minimum
Here is the graph
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