Find the center (h, k) and the radius r of the circle.x2 + y2 + 2x - 8y - 8 = 0
A. (h, k) = (4, -1), r = 5
B. (h, k) = (1, -4), r = 25
C. (h, k) = (-1, 4), r = 5
D. (h, k) = (-4, 1), r = 25
Answer: C
Mathematics
You might also like to view...
Find the linear equation for the straight line through 
with slope 4.
?
Please enter your answer as an equation in the form 
.
What will be an ideal response?
Mathematics
What are the slope and the y-intercept of y = ?2x ? 6 ?
What will be an ideal response?
Mathematics
Solve the absolute value equation.|1.9x + 2.5| = |x - 7|
A. x = -0.621, -3.556 B. no solution C. x = 1.552, -10.556 D. x = -0.9, -1.778
Mathematics
Fill in the blank so the result is a perfect square trinomial. Then factor into a binomial square.
x² + 12x + _____
Mathematics