Step-by-step explanation:
8x + x² - 2y + y² - 64 = 0
(x + 4)² + (y - 1)² - 81 = 0
(x + 4)² + (y - 1)² = 81
Hencr the center is (-4,1) and the radius is 9.
Absolute value is always positive because its talking about the real distance or steps to zero and even when you at a negative number it takes real steps to get back to zero.
Answer:
Use point (1, 3.5) on the graph
x = 1, y = 3.5
k = 3.5
1 + 492008 = 492009
OR
200009 + 292000 = 492009
