SAT Math Practice Question #12533 - SATify | SATify

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SAT Math Practice Question #12533 - SATify | SATify

#12533

coordinate geometry

circles

geometry

hard

150 sec

In the xy-plane, the graph of $2 x^{2} + 8 x + 2 y^{2} - 4 y = 10$ is a circle. What is the radius of the circle?

A.

3

B.

$5$

C.

$10$

D.

$15$