1. Chapter 5 Review

2. Tell whether the table represents a direct proportion
Tell whether the table represents a direct proportion. If so identify the constant of proportionality and write a direct proportion equation

3. Tell whether the graph represents a direct proportion
Tell whether the graph represents a direct proportion. If so identify the constant of proportionality and write a direct proportion equation

4. Tell whether the graph represents a direct proportion
Tell whether the graph represents a direct proportion. If so identify the constant of proportionality and write a direct proportion equation

5. Tell whether the equation represents a direct proportion
Tell whether the equation represents a direct proportion. If so identify the constant of proportionality.
𝑦=2.25𝑥

6. x is inversely proportional to y, and x=9 when y=4.
Find the constant of proportionality and write a direct proportion equation relating x and y.
x is inversely proportional to y, and x=9 when y=4.

7. Solve using: Method #1 (Use a proportion) Method #2 (Write an equation)
p is directly proportional to m, and p=128 when m=8.
Find p when m=10
Find m when p=80

8. Find the cost per meter of ribbon Write an equation relating c and r
Solve using: Method #1 (Use a proportion) Method #2 (Write an equation)
The cost of a piece of ribbon, c, is directly proportional to the length of the ribbon, r. The cost of 8 meters of ribbon is $5.60.
Find the cost per meter of ribbon
Write an equation relating c and r
Find the cost of a ribbon that is 9 meters long