#### Answer

$y=2x-1$

#### Work Step by Step

Equation of the tangent line at a point a is of the form
$y-f(a)=f'(a)(x-a)$
In this case, $a=3, f(a)=5$ and $f'(a)=2$.
Therefore, the equation of the given tangent line is
$y-5=2(x-3)$ or $y=2x-1$

Published by
W. H. Freeman

ISBN 10:
1464125260

ISBN 13:
978-1-46412-526-3

$y=2x-1$

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