#7-

7a)- Make a table of values from the graph.

7b)- Does the graph represent a linear relation? Explain:

*Yes it does because there is a recursive pattern on**both sides.*
7c)- Is it possible to have other points between the ones on this graph? Explain:

*Yes because you can work for a fraction of an hour. For example, half an hour, quarter of an hour, etc.*

#8-

8a)- Describe what the graph is about:

*The graph shows the number of cars being washed and the cost of each washed car. The***x axis**intervals show the number of cars. The**y axis**intervals show the cost for the amount of cars that are washed.

8b)- Describe the patterns on the graph:

*It is a linear relation because it has a recursive pattern. The x axis intervals always go up by 1, while the y axis intervals always go up by 10.*

8c)- What is the cost of one car?:

*The cost of one car washed is $10.*

8d)- Make a table of values for the graph.

8e)- If 15 cars were washed, what is the income for the grade 8 class?:

*The income for the grade 8 class if 15 cars were washed is $150.*

#12

12a)- Make a table of values representing the number of colour copies in relation to the cost. Include zero to five colour copies.

12b)- Is this a linear relation? Explain:

*It is***not**a linear relation because there's no recursive pattern on one side.

12c)- What is an expression for the cost in terms of the number of colour copies?:

*1c + 1 (let c=copies and I was unable to come up with an expression for the 0 copies for $0)*

12e)- What is the cost of 12 colour copies?:

*1(12)+1=***$13.**

#13

13a)- What does each variable represent?:

**t**represents time and**d**represents distance.

13b)- What does 15 represent?:

*The number you multiply the variable with. In this case, you multiply the variable by 15.*

13c)- Make a table of values. Use five whole number values for

*t.*

13d)- Graph the ordered pairs.

13e)- Is it reasonable to have points between the ones on the graph? Explain:

*Yes because you can have a fraction of a time or a distance.*

13f)- How far would Craig travel in 8 h?:

*15(8)=***120 km.****Here's a quick video if you're still a bit confused about plotting ordered pairs.**

**Click here to practice!**

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