5. The table below shows a proportional relationship between x and y. -9
-6
-3
0
3
6
12
5
(a) Fill in the rest of the table.
(b) What is the equation of this relationship?
State this as an equation for y in terms ofx.
(C) Ifx increases by 21 units in this relationship, by how much will y increase? Explain how
you found your answer.
6. The equation y=gives a proportional relationship between x and y.
(a) Fill in the table below for this relationship.
10
-8
-4
0
-10
-5
5
10
15
4
8
-5
12
10-
(b) Produce a graph of this relationship on the grid.