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3 A line is graphed to show the relationship between the weight of the oranges and their cost.
Relationship Between the Weight
of the Oranges and their Cost
Cost (5)
0123456 7 8910X
Number of Pounds
+
Which of the following statements correctly describes the graph?
The value of an increases by 4 for each increase of 1 by y.
D
The value of y increases by 4 for each increase of 1 by z,
The value of y increases by
4
5
for each increase of 1 by z.
4
The value of an increases by
for each increase of 1 by y.