Answer
$ x=\frac{1}{2}$
Work Step by Step
The slope of the tangent line=4 $\implies \frac{dy}{dx}=4$
That is, $\frac{d}{dx}(x^{2}+3x-7)=4$
$\implies 2x+3=4$
Or $ x=\frac{4-3}{2}=\frac{1}{2}$
Calculus (3rd Edition)
by Rogawski, Jon; Adams, Colin
Published by
W. H. Freeman
ISBN 10:
1464125260
ISBN 13:
978-1-46412-526-3
Chapter 3 - Differentiation - 3.2 The Derivative as a Function - Exercises - Page 115: 51
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