Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 10 - Test - Page 633: 15

Answer

Refer to the graph below.

Work Step by Step

Graph each inequality. To graph $x^2+y^2\gt 1$, graph the circle $x^2+y^2=1$ using broken lines then shade the region outside the circle. (Refer to the blue graph below.) To graph $\frac{x^2}{4}-y^2\ge 1$, graph the hyperbola $\frac{x^2}{4}-y^2=1$ then shade the region inside each curve. (Refer to the red graph below.) The solution to the given system is the region that is common to both graphs, which is the graph of $\frac{x^2}{4}-y^2 \ge 1$. Refer to the graph in the answer part above,
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