1. An airline company rewards the customers who fly often with a frequent flyer program. The airline will give their customers 450 points for every 3 flights that they take. Draw a graph which models this situation.
2. A class is having a bake sale. The class earns 15 cents for each cookie sold.
a. Draw a graph which models this situation.
b. How many cookies does the class need to sell to earn 45 cents?
3. Think About the Process A dry cleaning company charges $13 to clean and press 2 jackets.
a. Draw a graph of the relation.
b. How can you find the cost to clean and press 4 jackets using a graph?
A. Locate 4 on the y-axis then move to the right to find the corresponding x-value.
B. Locate 4 on the x-axis then move down to find the corresponding y-value.
C. Locate 4 on the x-axis then move up to find the corresponding y-value.
D. Locate 4 on the y-axis then move to the left to find the corresponding x-value.
c. Find the cost to clean and press 4 jackets.
4. A clothing store has an 45% sales tax on all items purchased.
a. Draw a graph which models this situation.
b. Is the amount of taxes proportional to the purchase?
5. A salesperson earns a commission that is a percent of the sales. The graph shows the proportional relationship between sales and commission. What percent commission does the salesperson earn?
6. A submarine dives at 140 feet per minute. Draw a graph which models this situation. Start when the submarine is at sea level (0 feet).
7. A 10-inch candle burns at a rate of 2 inch per hour.
a. Draw a graph which models this situation.
b. How long will the candle last?
8. Error Analysis A tree grows 15 inches each year. Angela is asked to find when the tree will be 3 , and 3 fourths feet tall. Angela incorrectly says 45 years.
a. Draw a graph which models the situation.
b. How many years will it take for the tree to be 3 , and 3 fourths feet tall?
c. Which mistake might Angela have made?
A. Angela did not convert the height of the tree correctly.
B. Angela gave the height of the tree in inches not the number of years.
C. Angela gave the height of the tree in feet not the number of years.
D. Angela drew a graph with a negative relationship instead of a positive relationship.