SAT Math Practice Question #20358 - SATify | SATify

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SAT Math Practice Question #20358 - SATify | SATify

#20358

coordinate geometry

circles

hard

180 sec

Calculator OK

In the $x y$ -plane, the graph of the given equation is a circle. What is the length of the circle's radius? $x^{2} - 6 x + y^{2} = - 16 y + 127$

A.

$191$

B.

$102$

C.

$210$

D.

$20$