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 101: 5

Answer

(a) To find the x-intercept(s) of the graph of an equation, we set __$y$__ equal to 0 and solve for __$x$__. So the x-intercept of $2y=x+1$ is $-1$ (b) To find the y-intercept(s) of the grapg of an equation we set __$x$__ equal to 0 and solve for __$y$__. So the y-intercept of $2y=x+1$ is $0.5$

Work Step by Step

(a) $2(0)=x+1$ subtract 1 from each side $0-1=x+1-1$ $x=-1$ (b) $2y=0+1$ isolate for y $y=
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