Back to 8.1 Graphs of the Sine and Cosine Functions

Identifying the Amplitude of a Sine or Cosine Function

Avg difficulty 2.5

What is the amplitude of the sinusoidal function $f \left(x\right) = −4 \sin \left(x\right) ?$ Is the function stretched or compressed vertically?

OpenStax Algebra and Trigonometry 2e, 8.1 Graphs of the Sine and Cosine Functions, exercise 3

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Adapted from College Algebra © 2021 Rice University. Licensed under CC BY 4.0. Sources: College Algebra 2e, Algebra and Trigonometry 2e, Precalculus 2e, College Algebra with Corequisite Support 2e. Imported at revision 4922e46.