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Trigonometric and Exponential Graphs

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Question 4

The pressure p p\,p in a sound wave is modeled by the function p=cos⁡α∘p = \cos \alpha^\circp=cosα∘, where α \alpha\,α is the phase angle in degrees.

Sketch the graph of p p\,p against α \alpha\,α for −180≤α≤180-180 \leq \alpha \leq 180−180≤α≤180.

On the axes provided, sketch the graph of p=cos⁡α∘p = \cos \alpha^\circp=cosα∘ for −180≤α≤180-180 \leq \alpha \leq 180−180≤α≤180.

A coordinate system with the horizontal axis alpha from -180 to 180 in increments of 90 and the vertical axis p from -1 to 1.

[2]

Trigonometric and Exponential Graphs Questions

  1. GCSE
  2. /Maths
  3. /Trigonometric and Exponential Graphs

Practise Eduqas GCSE Maths Trigonometric and Exponential Graphs with exam-style questions for Foundation and Higher tier. 31 questions, matched to the Eduqas GCSE Maths (C300QS) specification and written in Component 1 and Component 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank