Precalculus: Mathematics for Calculus, 7th Edition

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

Chapter 13 - Section 13.2 - Finding Limits Algebraically - 13.2 Exercises: 9



Work Step by Step

When solving limits, the first step to attempt is direct substitution, meaning plugging in the value of what the limit is approaching into the equation. In this case, plugging in $\mathbf{4}$ into the function $\mathbf{5x^2-2x+3}$ for $\mathbf{x}$ will give you $\mathbf{5*4^2-2*4+3=75}$
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