College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 3 - Section 3.1 - Functions - 3.1 Assess Your Understanding - Page 211: 56


The domain of h(x) is {${ x|x\ne2,x\ne-2}$}.

Work Step by Step

$h(x)=\frac{2x}{x^2-4}$ To find the domain of a rational function, we must set the denominator equal to 0 and solve for x. $x^2-4=0$ $x^2=4$ $x=\pm2$ This means that the domain is: {${ x|x\ne2,x\ne-2}$}
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