1. Graph the following circles on one set of coordinate axes:
x2 + (y - 6)2 = 16
(x - 9)2 + (y - 6)2 = 16
(x + 9)2 + (y - 6)2 = 16
(x + 4.5)2 + (y - .5)2 = 16
(x - 4.5)2 + (y - .5)2 = 16
2. Graph the following on one set of coordinate axes:
x2 + (y - 7)2 = 64
: 7 
y
(x + 6)2 + (y - 7)2 = 4
: 7 y
(x + 2)2 + (y - 7)2 = 4
: 7 y
(x - 6)2 + (y - 7)2 = 4
: 7 y
(x - 2)2 + (y - 7)2 = 4
: 7 y
the point (0, -9)
y = -2x - 9
: -8 x
0
y = -4x - 9
: -4 x
0
x = 0
: -9 y
7
y = 4x - 9
: 0 x
4
y = 2x - 9
: 0 x
8
3. Graph the following on one set of coordinate axes:
y = .5 x2 + 4
: -4
x 4
x = 3
: -11 y
8.5
x = -3
: -11 y
8.5
x2 + (y + 11)2 = 9
: y -11
y = 2x + 8
: 3 x
6
y = 4x + 8
: 2 x
3
y = -2x + 8
: -6 x
-3
y = -4x + 8
: -3 x
-2