Mathematical Methods — Question 2

QCAA 2023, Paper 1 · 1 mark

Q2 · 2023 · Technology-freeSimple familiar1 mark

QUESTION 2

f(x)=e^{6-2x}

, determine the value of

f'(2)

(A)

e^2

(B)

2e^2

(C)

-e^2

(D)

-2e^2

ABCD

WORKED SOLUTION

1 mark

ANSWER

D —

-2e^2

Worked solution

f'(x)=-2e^{6-2x}

, hence

f'(2)=-2e^2

; D.

Selects option D.

[1 mark]

Worked explanation by QCE Vault; correct option verified against the QCAA answer key.