For all numbers x and y, let z be defined by the equation z = |22 - x2 - y2| + 22. What is the smallest possible value of z?
A. 0
B. 4
C. 8
D. 16
Answer:B
For all numbers x and y, let z be defined by the equation z = |22 - x2 - y2| + 22. What is the smallest possible value of z?
A. 0 B. 4 C. 8 D. 16
Explanation: B