Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 5 - Trigonometric Functions - Section 5.1 Angles and Their Measures - 5.1 Assess Your Understanding - Page 389: 134

Answer

$-\frac{7}{3}$ is the zero of $f(x)$.

Work Step by Step

Set $f(x)=0$ then solve for $x$: $0=3 x+7$ Adding $-7$ on both sides we get $-7 = 3x$ Divide by $3$ on both sides: $x=-7 / 3$. Thus, the zero of $f(x)$ is $ -\frac{7}{3}$.
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