## Chapter 9 review and pre-test

#### sorry couldn't put the picture of the actual question

### 8. The graph shows a linear relationship (review)

#### a) Describe what the graph is about

-it is about a grade class having a car wash#### b) describe patterns on the graph

- it has a recursive pattern- goes over 1 and up 10

#### c) What is the cost of one car wash?

- 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?

- their income will be 150$### 9. The graph shows part of a linear relation (review)

#### a) Describe patterns on the graph

-over 1 up 4#### b) make a table of values using at least 5 whole number values for x

#### c)what is the value of y when x=2?

- y=11#### d) what is the value of y when x=5?

y=40### 10. The table represents a linear relation (review)

#### a) Graph the ordered pairs

#### b) What is the difference in value for consecutive A-values? What is the difference in value for consecutive B-values?

- A value- +1- B value- +4

#### c) describe the relationship between the A and B. Use words and an expression.

- 4x+1

### 6. If the equation is s= -4t+2 the value for is in (-1,s) is __. (pretest)

-4t+2+s

-4(-1)+2=s

4+2=s

6=s

## No comments:

## Post a Comment