SAT Math Practice Question #31952 - SATify | SATify
#31952
manipulation
formulas
completing the square
coordinate geometry
equations
circles
algebra
geometry
medium
60 sec
The graph of x2+8x+y2−2y=8 in the xy-plane is a circle. What is the value of r2, where r is the length of the circle's radius?
• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-). • Fractions must be in lowest terms. • Mixed numbers must be converted to improper fractions.
