If the equation of the circle shown above is written in the form x 2 + y 2 + ax + by = c, what is the value of ab + c?
A. 6
B. 16
C. 28
D. 32
Answer:D
If the equation of the circle shown above is written in the form x 2 + y 2 + ax + by = c, what is the value of ab + c?
A. 6 B. 16 C. 28 D. 32
Explanation: D