Rina's Scribe Post

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