11. Differentiation
iGCSE (2021 Edition)
11.08 Using the first derivative
Interactive practice questions
Which of the following describes a maximum turning point?
A point where the tangent crosses the curve and the concavity changes from upwards to downwards or from downwards to upwards around the point.
A
A point where the tangent is horizontal and the concavity changes from upwards to downwards or from downwards to upwards around the point.
B
A point where the curve changes from decreasing to increasing.
C
A point where the curve changes from increasing to decreasing.
D
Easy
< 1min
Which of the following describes a minimum turning point?
Easy
< 1min
Consider the parabola with equation $y=x^2-4x+6$y=x2−4x+6.
Easy
4min
Consider the parabola with equation $y=5+x-x^2$y=5+x−x2.
Easy
3min
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