y
y
9
8
7
y=x
y=2x
y=x
9
8
7
6
6
5
4
3
1
-8
-7
-6
-5
-4
-3
-2
-1
3
y=log2x
2
-9
2
1
2
3
4
5
6
7
8
9
-9
-8
-7
-6
-5
-4
-3
-2
Domain
{x|xє R}
(−∞ ,+∞)
−∞≤x ≤+∞
Range
{y|yє R, y > 0}
(0,+∞)
0≤ y≤+∞
-1
1
2
3
4
5
6
x
7
8
9
-1
-2
Horizontal Asymptote y = 0
Vertical Asymptote NONE
y=2x-3
1
x
-1
y = 2x
y=log2x+3
5
4
-2
-3
-3
-4
-4
-5
-5
-6
-6
-7
-7
-8
-8
-9
-9
y = log2x
Horizontal Asymptote NONE
Vertical Asymptote x = 0
Domain
{y|yє R, y > 0}
(0,+∞)
0≤x≤+∞
Range
{x|xє R}
(−∞ ,+∞)
−∞≤ y≤+∞
y = 2x-3
Horizontal Asymptote y = 0
Vertical Asymptote NONE
Domain
{x|xє R}
(−∞ ,+∞)
−∞≤x ≤+∞
Range
{y|yє R, y > 0}
(0,+∞)
0≤ y≤+∞
y = log2x+3
Horizontal Asymptote NONE
Vertical Asymptote x = 0
Domain
{y|yє R, y > 0}
(0,+∞)
0≤x≤+∞
Range
{x|xє R}
(−∞ ,+∞)
−∞≤ y≤+∞
y
y
9
8
7
y=x
y=2x
8
7
6
6
5
5
y=2x + 3
4
3
1
-8
-7
-6
-5
-4
-3
-2
y = 2x
Horizontal Asymptote y = 0
Vertical Asymptote NONE
Domain
{x|xє R}
(−∞ ,+∞)
−∞≤x ≤+∞
Range
{y|yє R, y > 0}
(0,+∞)
0≤ y≤+∞
-1
4
2
1
x
1
2
3
4
5
6
7
8
9
-9
-8
-7
-6
-5
-4
-3
-2
-1
-1
-2
-2
-3
-3
-4
-4
-5
-5
-6
-6
-7
-7
-8
-8
-9
-9
y = log2x
Horizontal Asymptote NONE
Vertical Asymptote x = 0
(0,+∞)
0≤x≤+∞
Range
{y|yє R}
(−∞ ,+∞)
−∞≤ y≤+∞
y = 2x+3
Horizontal Asymptote y = 3
Vertical Asymptote NONE
Domain
{x|xє R}
(−∞ ,+∞)
−∞≤x ≤+∞
Range
{y|yє R, y > 3}
(3,+∞)
3≤ y ≤+∞
x
1
-1
Domain
{x|yє R, x > 0}
y=log2(x-3)
3
y=log2x
2
-9
y=x
9
2
3
4
5
6
7
8
9
y = log2(x-3)
Horizontal Asymptote NONE
Vertical Asymptote x = 3
Domain
{y|yє R, x > 3}
(3,+∞)
3≤ x≤+∞
Range
{y|yє R}
(−∞ ,+∞)
−∞≤ y≤+∞