Question

When graphed, the circle with equation

x2 + y2 - 10x + 16 = 0
will lie ENTIRELY in Quadrants
A)I and II.
B)I and IV.
C)III and II.
D)III and IV

Answer 1

the correct awnser is B

Explanation:

It will lie in Quadrants I and IV, having center (5, 0) and radius 3. Complete the squares and get the equation in standard form, (x - 5)2 + y2 = 9.