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**Chapter Review pg. 360-361**

**Chapter Review pg. 360-361**

8. The graph shows a linear relation.

a) Describe what the graph is about.

- income of the number of cars being washed

b) Describe patterns on the graph.

- it goes over one, up 10

c) What is the cost of one car wash?

- each car is washed for $10

d) Make a table of values from the graph.

e) If 15 cars are washed, what is the income for the Grade 8 class?

- 15 x 10 = $150

a) They are far apart. They go over 2, up 9.

b)

c)

d)

a)

b) Yes, it's linear because it's in a straight line.

c) Yes, because you can have half an hour or a dollar and fifty cents.

a)

b) The

*y*axis goes up by 4
The

*x*axis goes up by 1
c) You times the

*x*axis by 4 then add 1 to the*y*.
The expression would be

*4x + 1*
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