Critical Points and the First Derivative Test
30 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest, every one with a full worked solution. Work through all 30 with your weekly-lesson access code.
Sample: the first question, solved
Find the critical point of f(x)=x²−6x+8.
📘 Worked solution
✓f'(x)=2x−6. Setting f'(x)=0 gives 2x−6=0, so x = 3.
And one from the hard end
"Given f(x)=2x³−9x²+12x+1, find all critical points and classify each."
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
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