Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.9 - The Coordinate Plane; Graphs of Equations; Circles - 1.9 Exercises - Page 104: 82

Answer

$(a)$ See the image below. $(b) $ $x$-intercepts - $A(-1,0)$, $C(1,0)$ $y$-intercepts - $B(0,1) $ $(c)$ Solving equation gives us points: $x$-intercepts: $x=-1$ ; $y=0$ $x=1$ ; $y=0$ $y$-intercepts $x=0$ ; $y=1$

Work Step by Step

$(a)$ We simply input the equation and get the graph. See the image above. $(b)$ As we clearly see from the graph, we have following interceptions: x-intercepts - A(-1,0), C(1,0) y-intercepts - B(0,1) $(c)$ $y=\sqrt[3]{1-x^2}$ For x-intercept, we need to find x values where y=0 $\sqrt[3]{1-x^2}=0$ $1-x^2=0$ $x^2=1$ $x_1=-1$ $x_2=1$ For y-intercept, we need to find y values where x=0 $y=\sqrt[3]{1-0^2}=1$
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