2014 TWO(c)

Merit
Question
The graph below shows the function y=f(x)y = f(x).
Loading diagram...
For the function f(x)f(x) above:

(i) Find the value(s) for xx that meet the following conditions:

1. f(x)f(x) is not differentiable: ______________________________

2. f′′(x)<0f''(x) < 0: ______________________________

3. f(x)f(x) is not defined: ______________________________

(ii) What is the value of f(2)f(2)? ______________________________

*State clearly if the value does not exist.*

(iii) What is the value of lim⁡x→−1f(x)\lim_{x \to -1} f(x)? ______________________________

*State clearly if the value does not exist.*
Official Answer
1. −2-2, −1-1, 22
2. x<−2x<-2
3. −2-2

44

33
Grading Criteria

Achievement (u)

  • 22 correct answers

Merit (r)

  • 44 correct answers.

Excellence T1

-

Excellence T2

-
Exam Paper (2014)Assessment Schedule (2014)
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