VCE Maths Methods Diff Calculus Mini Test 10

Number of marks: 8

Reading time: 1 minute

Writing time: 12 minutes

Section A Calculator Allowed
Instructions
• Answer all questions in pencil on your Multiple-Choice Answer Sheet.
• Choose the response that is correct for the question.
• A correct answer scores 1; an incorrect answer scores 0.
• Marks will not be deducted for incorrect answers.
• No marks will be given if more than one answer is completed for any question.
• Unless otherwise indicated, the diagrams in this book are not drawn to scale.


Question 1 [2018 Exam 2 Section A Q5]

Consider \(f(x) = x^2 + \frac{p}{x}, x \neq 0, p \in R\).

There is a stationary point on the graph of \(f\) when \(x = -2\).

The value of \(p\) is

  • A. \(-16\)
  • B. \(-8\)
  • C. \(2\)
  • D. \(8\)
  • E. \(16\)
Correct Answer: A
Click here for full solution

End of Section A


Section B – No Calculator
Instructions
• Answer all questions in the spaces provided.
• Write your responses in English.
• In questions where a numerical answer is required, an exact value must be given unless otherwise specified.
• In questions where more than one mark is available, appropriate working must be shown.
• Unless otherwise indicated, the diagrams in this book are not drawn to scale.


Question 1 [2016 Exam 1 Q1]

a. Let \(y = \frac{\cos(x)}{x^2+2}\). Find \(\frac{dy}{dx}\). 2 marks

b. Let \(f(x) = x^2e^{5x}\). Evaluate \(f'(1)\). 2 marks

Question 2 [2016 Exam 1 Q2]

Let \(f: (-\infty, \frac{1}{2}] \to R\), where \(f(x) = \sqrt{1-2x}\).

a. Find \(f'(x)\). 1 mark

b. Find the angle \(\theta\) from the positive direction of the x-axis to the tangent to the graph of \(f\) at \(x = -1\), measured in the anticlockwise direction. 2 marks


End of examination questions

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