1. Please take out the following: Lined piece of paper Pencil Red pen
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Please take out the following: Lined piece of paper Pencil Red pen
Students will be able to identify intervals of increase, decrease, and constant values of a function.

2. Find the unit rate for each and compare
Find the unit rate for each and compare. Then write a statement describing the relationship between the rates.
Matt drove at 75 miles per hour for 1.5 hours. Dave drove miles in 2.5 hours and Sarah drove miles in 1.75 hours.
The unit rate is 75 miles per hour for Matt, Dave and Sarah

3. Find the unit rate for each and compare
Find the unit rate for each and compare. Then write a statement describing the relationship between the rates.
 Ally drove at 90 miles per hour for 1.25 hours. Hannah drove 135 miles in 2.25 hours and Nate drove 105 miles in 1.5 hours.
Ally: 90 miles per hour
Hannah: 60 miles per hour
Nate: 70 miles per hour
Ally had the quickest driving rate & Hannah had the slowest driving rate.

4. The amount of commission Ryan earns at his job is directly proportional to the amount of sales he earns. What does the constant of variation represent in this situation?
The constant of variation represents the commission rate per sale.

5. An ant walks at a constant rate for 10 minutes
An ant walks at a constant rate for 10 minutes. What does the constant of variation represent in this situation?
Constant rate or 5 cm per min.?
The constant of variation represents the walking rate per minute.

6. Cups of chocolate chips in chocolate chip cookies
Servings
2.5 5
7.5 10 15
Chocolate Chips
(cups)
1 2 1
1 1 2 2 3
Write an equation that represents the number of cups of chocolate chips and the number of servings of chocolate chip cookies, where c represents the number of cups of chocolate chips and e represents the number of servings of chocolate chip cookies.
e = 5c or c = 1/5e

7. Ms. Jaffess’ banana bread recipe calls for 4 parts banana to 1 part walnuts. Determine the constant of proportionality from the information given for the recipe. Then, write an equation for the amount of banana (b) based on the amount of walnuts (w).
Constant rate or 5 cm per min.?
b=4w or w=¼b

8. The sale price, p, of an item is 60% of the regular price, r
The sale price, p, of an item is 60% of the regular price, r. Write an equation to represent this relationship.
p=.60r
Constant rate or 5 cm per min.?

9. A 16-ounce box of cereal cost $7. 20
A 16-ounce box of cereal cost $ Write an equation that shows the relationship between the price (p) and the weight (w) of the cereal.
Constant rate or 5 cm per min.?
p=.45w

10. A 15-ounce box of cereal cost $4. 50
A 15-ounce box of cereal cost $ Write an equation that shows the relationship between the price (p) and the weight (w) of the cereal.
Constant rate or 5 cm per min.?
p=.3w