Answer
$1$
Work Step by Step
We can get the $y$-intercept by plugging in $x=0$ into the function.
Substitute $0$ into $x$ to obtain:
$y=\sec(0)=1$, hence the $y$-intercept is $1$.
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 6 - Trigonometric Functions - 6.5 Graphs of the Tangent, Cotangent, Cosecant, and Secant Functions - 6.5 Assess Your Understanding - Page 418: 9
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