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CAIE IGCSE Additional Math 10.3 draw and use trigonometric graphs

Use this trig-graphs page to read coordinates from sinusoidal graphs, identify constants and use graph features to answer equations.

Syllabus
2028–2030
Course
Additional Mathematics 0606

Exam points

  • Find coordinates of marked points on a trigonometric graph accurately.
  • Use graph features to determine constants such as a, b and c in the model.
  • Draw or interpret trigonometric graphs over the stated interval on axes.

10.3. Draw and use trigonometric graphs question 1

[Maximum number: 4]
Figure for Question 10.3. Draw and use trigonometric graphs question 1 — CAIE IGCSE Additional Math

The diagram shows the graph of f(x)=acos⁡bx+cf(x)=a\cos bx+c, for 0⩽x⩽8π30\leqslant x\leqslant\frac{8\pi}{3} radians.

Find the value of each of the constants a, b and c.

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