If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Algebra (all content)

Unit 14: Lesson 8

Finding amplitude & midline of sinusoidal functions from their formulas
Math
Algebra (all content)
Trigonometric functions
Finding amplitude & midline of sinusoidal functions from their formulas
© 2023 Khan AcademyTerms of usePrivacy PolicyCookie Notice

Amplitude of sinusoidal functions from equation

CCSS.Math: HSF.BF.B.3
Google Classroom

Problem

What is the amplitude of g, left parenthesis, x, right parenthesis, equals, minus, 9, cosine, left parenthesis, start fraction, pi, divided by, 2, end fraction, x, minus, 6, right parenthesis, plus, 8?
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0, point, 75
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
units
Stuck?
Stuck?