AP Calculus ABeasymcq1 pt

On which interval is f(x)=x26x+5f(x)=x^2-6x+5 increasing?

A.(,3)(-\infty,3)
B.(3,)(3,\infty)
C.(,)(-\infty,\infty)
D.(0,)(0,\infty)

Explanation

Core Concept

f(x)=2x6f'(x)=2x-6, which is positive when x>3x>3. So ff is increasing on (3,)(3,\infty).

Correct Answer

B(3,)(3,\infty)

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