Precalculus : Graph the Sine or Cosine Function

Study concepts, example questions & explanations for Precalculus

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Example Questions

Example Question #44 : Graphs And Inverses Of Trigonometric Functions

Which of the following functions has a y-intercept of 

Possible Answers:

Correct answer:


The y-intercept of a function is found by substituting . When we do this to each, we can determine the y-intercept. Don't forget your unit circle! 

Thus, the function with a y-intercept of  is 

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