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Single Variable Calculus

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Find the Tangent Line for a Rational Function

SVCALC-0LKBYM

Find the equation for the line tangent to $y=\dfrac{x-1}{x+3}$ at $(-1,-1)$.

A

$y=2x+1$

B

$y=-x-2$

C

$y=-1$

D

$y=x$