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Further applications of differentiation — Question 243

Original QCE Vault practice · 1 mark

Q243 · Practice questionTechnology-freeSimple familiar1 mark

QUESTION 243

The graph shows

f^{\prime}(x)=(x+2)(x-1)

. At which value of

x

does

f

have a local maximum?

Upward-opening graph of f prime(x)=(x+2)(x-1), crossing the horizontal axis at -2 and 1.

(A)

-2

(B)

1

(C)

2

(D)

-\dfrac12

ABCD

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