SAT Math Practice Question #7702 - SATify | SATify
#7702
equations
algebra
coordinate geometry
manipulation
completing the square
circles
formulas
geometry
medium
90 sec
The graph of x2−8x+y2+2y=47 in the xy-plane is a circle. What 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.
