SAT Math Practice Question #12400 - SATify | SATify

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SAT Math Practice Question #12400 - SATify | SATify

#12400

equations

coordinate geometry

circles

hard

70 sec

In the xy-plane, the graph of the given equation is a circle. What is the length of the circle's radius?

$x^{2} + 12 x + y^{2} - 4 y = 15$

A.

$35$

B.

$47$

C.

$55$

D.

$62$