Trig graph value
- Know key angles such as 0°, 90°, 180°.
- Read amplitude and period.
- Plot smooth repeating waves.
Answer: cos 0° = 1
𝑥 Algebra
Trigonometric graphs
Learn trigonometric graphs with a GCSE-style explanation, help guide, worked example, practice question and flashcards.
Global XP
Level 10 / 100 XP
1. Explanation
Key idea
- Trigonometric graphs is part of graphs and appears often in KS3–GCSE maths.
- Trigonometric graphs are periodic waves.
- Use the worked model, help guide, interactive question and flashcards to practise trigonometric graphs until the steps feel automatic.
Real-life examples
- Shopping, sport, travel, science, design and everyday decisions all use this skill.
2. Visual
Trigonometric graphs learning map
Understand the key idea → follow the help guide → practise a question → check your method → build speed with flashcards.
3. Help guide
How to tackle Trigonometric graphs
- Learn the rule: Trigonometric graphs are periodic waves.
- Worked model: Know key angles such as 0°, 90°, 180°. Read amplitude and period. Plot smooth repeating waves.
- Try the interactive question without looking at the answer first.
- Use the flashcards to test the rule, the method and a common check.
4. Worked examples
Step-by-step working
5. Interactive questions
Try it yourself
For y = sin x, what is y when x = 90°?
6. Flashcards
Master quick recall
Flip each card, then choose whether you know it or need more practice.
0 mastered
FrontRule for Trigonometric graphs
BackTrigonometric graphs are periodic waves.
FrontExample answer: For y = sin x, what is y when x = 90°?
Backsin 90° = 1, so y = 1.
FrontCommon check for Trigonometric graphs
BackCheck units/notation, compare with an estimate, and make sure the answer matches the question.
7. Finish
Complete this topic
When you have read the examples, tried the question and reviewed flashcards, claim your topic completion XP.