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2. Intro to Derivatives

2. Intro to Derivatives / Tangent Lines and Derivatives / Problem 2

Problem 2

Determine the equation of the line perpendicular to the tangent line of the curve $y = 2 x + 5$ at the point $Q of open paren 2 comma 9 close paren$ .

A

$y = \frac{1}{2} x + 10$

B

$y = \frac{1}{2} x + 8$

C

$y = - \frac{1}{2} x + 10$

D

$y = - \frac{1}{2} x + 8$

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