find the vertex and yintercept.
For the function f(x) = x²  6x + 8,
Find the yintercept, the equation of the axis of symmetry, and the xcoordinate of the vertex. 
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Algebra House 

For the function f(x) = x²  6x + 8,
Find the yintercept, the equation of the axis of symmetry, and the xcoordinate of the vertex. 
Examples
All
