FeaturesHow It WorksFor ParentsPricingContactLog inStart free β€” no credit card needed β†’

Mathematical Methods Β· Unit 2 Β· Introduction to differential calculus Β· Rates of change and the concept of derivatives

Interpret the derivative as the gradient of a tangent line of the graph of 𝑦 = 𝑓(π‘₯).

Practise this objective

AI-marked practice questions tied to QCAA mark schemes for this exact LO. Free to start.

Start free practice

Practice questions for this objective

Full questions, answers and worked solutions unlock when you start a free practice session.

Question 1

Let \( f(x) = 2x^3 - 5x^2 + 3x - 1 \). (a) Determine the derivative \( f'(x) \). (1 mark) (b) Evaluate \( f'(2) \). (1 mark) (c) Interpret the value found in part (b) in terms of the graph of \( y = f(x) \) at \( x = 2 \). (1 mark)

Worked answer
πŸ”’ Start free to see full answer
Question 2

Consider the function \(f(x) = x^3 - 6x^2 + 9x + 2\). (a) Determine the derivative \(f'(x)\). (1 mark) (b) Find the gradient of the tangent to the graph of \(f(x)\) at the point where \(x = 1\). (1 mark) (c) Interpret the meaning of your answer to part (b) in the context of the tangent line at \(x = 1\). (1 mark)

Worked answer
πŸ”’ Start free to see full answer
Question 3

The function \(g(x) = x^3 - 6x^2 + 9x + 2\) has a stationary point at \(x = 1\). Which of the following statements correctly interprets the gradient of the tangent to the graph of \(y = g(x)\) at \(x = 1\)?

Worked answer
πŸ”’ Start free to see full answer
Unlock all 3 answers β€” free

More in Rates of change and the concept of derivatives

← Previous
Determine average rate of change in a variety of practical contexts.
Next β†’
Interpret the derivative as the instantaneous rate of change.
All LOs in Rates of change and the concept of derivativesBack to full Mathematical Methods syllabus