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Methods2023 Exam 2 Section A · Q5CAS active1 mark

Horizontal tangent at the origin for power functions

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Which one of the following functions has a horizontal tangent at $(0, 0)$ ?

1 mark

A

y = x^{-\frac{1}{3}}

B

y = x^{\frac{1}{3}}

C

y = x^{\frac{2}{3}}

D

y = x^{\frac{4}{3}}

E

y = x^{\frac{3}{4}}

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