Increasing/Decreasing Intervals and Function Behavior
10 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest — every one with a full worked solution. Work through them free, no account needed.
Sample: the first question, solved
For f(x)=x²−4, on which interval is the function increasing?
📘 Worked solution
✓The parabola opens upward with vertex at x=0, so the function is increasing for x>0.
And one from the hard end
For f(x)=−(x−1)²+6 (vertex at x=1, opens downward), describe where it is increasing and decreasing.
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
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