7.81.za 18 Sally made four graphs.
Part A
Which graph shows a proportional relationship between x and y?
18
16
14
12
101
(
812)
20
18
16.12.16)
14
12
10
8
6
4
214, 4)
2
0 2 4 6 8 10 12 14 16 18 20
(82)
6
4 $14, 4)
(0, 2)
0 2 4 6 8 10 12 14 16 18 20
С
A
20
18
16
14
12
10
8
(12,8)
6
4
2:14.02016, 2)
0246 8 10 12 14 16 18 20
20
18
16
14
12
10
8
6
4
2
(123) (16,4)
(82)
0 2 4 6 8 10 12 14 16 18 20
D
B
Part B
What is another point Sally could have plotted on the graph of the proportional relationship?
A
13. 10)
B
с
(68)