SAT Math Practice Question #12319 - SATify | SATify

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SAT Math Practice Question #12319 - SATify | SATify

#12319

coordinate geometry

circles

hard

75 sec

A circle in the $x y$ -plane has its center at $(1, 2)$ . Line $m$ is tangent to this circle at the point $(5, 0)$ . What is the slope of line $m$ ?

A.

$- 2$

B.

$- \frac{1}{2}$

C.

$\frac{1}{2}$

D.

$2$