Graph the Sine or Cosine Function

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Pre-Calculus › Graph the Sine or Cosine Function

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Which of the following functions has a y-intercept of ?

$y = \cos(x)$

CORRECT

$y = \sin(x)$

$y = \tan(x)$

$y = \csc(x)$

$y = \cot(x)$

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 .