Posted by **JM** on Sunday, February 12, 2012 at 10:31pm.

On what interval is the function f(x)=x^2-6x+8 is increasing?

- Calculus -
**Anonymous**, Monday, February 13, 2012 at 10:40am
come on. even without calculus you know that the vertex is at (3,-1).

With calculus, f' = 2x-6, and f is increasing where f' > 0

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