Name: ___________________________________________ Date: _____________________________
LBLM 7–12
BLM 7–9 Section 7.3 Extra Practice
1. a) y = 5x – 11, 5x – y – 11 = 0
3
1
x + , 3x – 4y + 2 = 0
4
2
9
c) y = x – , 2x – 2y – 9 = 0
2
18
d) y = 2x –
, 10x – 5y – 18 = 0
5
b) y =
c) y = 2x + 10; 2x – y + 10 = 0
1
7
d) y =  x + ; x + 3y – 7 = 0
3
3
1
5. a) m = , (–5, 3)
2
1
2
2. a) y – 3 = 2(x – 3) b) y – 1 =  (x – 2)
c) y – 3 =
2
(x – 5)
7
b) m =
4
, (1, –4)
3
3. a) y – 4 = –5(x + 3); y = –5x – 11; 5x + y + 11 = 0

1
b) y – 1 = 2  x   ; y = 2x; 2x – y = 0

2
c) y – 3 = 3(x – 0); y = 3x + 3; 3x – y + 3 = 0
d) y – 0 =
1
1
5
(x + 5); y = x + ; x – 2y + 5 = 0
2
2
2
4. a) y = x – 3; x – y – 3 = 0
1
b) y =  x + 5; x + 3y – 15 = 0
3

2
c) m = 2,  1,  

3
d) m = –4, (–0.4, 5)
6. a) y + 6 = 0(x + 5); y = –6
b) y – 1 = 2(x – 4); y = 2x – 7
1
2
1
2
c) y – 0 =  (x – 4); y =  x + 2
7. a) y – 5 = 
15
(x – 0); 15x + 4y – 20 = 0
4
b) y – 4 =
4
(x – 0); 4x – 5y + 20 = 0
5
c) y – 0 =
2
(x – 0); 2x – 5y = 0
5