Precalculus: Mathematics for Calculus, 7th Edition

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

Chapter 1 - Review - Exercises - Page 136: 138

Answer

$[0, 4]$

Work Step by Step

Notice that the value of $x^2-4x$ (which is represented by the parabola) is greater than or equal to 0 in the interval (refer to the graph in the attached image for reference) $[0, 4]$. Therefore, the solution to the given inequality is: $[0, 4]$
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