Answer
$-4.66$
Work Step by Step
We need to use the ZERO function of a graphing utility in order to compute the positive $x$-intercepts.
Therefore, $ZERO(x^2+4x-3) =-4.6458 \approx -4.66$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Appendix B - Graphing Utilities - B.3 Using a Graphing Utility to Locate Intercepts and Check for Symmetry - B.3 Assess Your Understanding - Page B6: 2
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