Calculus 10th Edition

Published by Brooks Cole
ISBN 10: 1-28505-709-0
ISBN 13: 978-1-28505-709-5

Chapter P - Review Exercises - Page 37: 17

Answer

$(3,8), (-2,3)$

Work Step by Step

$x-y=-5$ $x^2-y=1$ Combine the two equations by subtracting the second by the first: $x^2-x=6$ Solve for x: $x^2-x-6=0$ $(x-3)(x+2)=0$ $x=3,-2$ Substitute for $x=3$ in the first equation: $3-y=-5$ $y=8$ Substitute for $x=-2$ in the first equation: $-2-y=-5$ $y=3$ The points of intersection are $(3,8), (-2,3)$
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