CAIE A-Level Economics 2.2.5 PED on straight-line demand

CAIE A-Level Economics 2.2.5 PED on straight-line demand
Cambridge International AS & A Level Economics 9708 syllabus for exams in 2026, 2027 and 20282026–2028

Practise reading straight-line demand diagrams to locate elastic, inelastic and unit elastic points along the same curve.

How this is tested

  • identify where PED is unit elastic on a straight-line demand curve
  • interpret movements along a demand curve to decide whether PED rises or falls

Question 8

[Maximum number: 1]

The diagram shows the demand curve for a product.

Figure for Question 8 — CAIE A-Level Economics

What is the price at which the price elasticity of demand is unit elastic?

A

$ 0

B

$ 50

C

$ 100

D

every price along the demand curve