NAME _____________________________________________ DATE ____________________________ PERIOD _____________ Chapter 1 Review On Test: What event is happening this Friday? Write the correct answer in the blank at the right of each question. 1. What is the unit rate if there are 1,760 Calories in 8 servings? 1._220 calories/1 serving_ 2. A cheetah can run 70 miles per hour. What is this speed in feet per hour? (1 mile = 5280 ft) 2. _369600 miles/1 hour_ 3. Which size of yogurt shown in the table has the lowest unit price? 3. _8 ounce__ Size (oz) 6 8 10 32 1 Cost ($) 0.89 1.04 1.69 4.79 1 4. Kevin can travel 22 2 miles in 3 hour. What is his average speed in miles per hour? 5. The table shows the cost for ordering a certain number of pizzas. What is the value of x if the cost is proportional to the number of pizzas ordered? 2 3 4 5 $19.98 $29.97 $39.96 x Pizzas Ordered Cost 6. What is the constant of proportionality of the linear function? Time, x 1 2 3 4 Cost ($), y 25 50 75 100 118 7. Find z. 13 = 59 𝑧 4. _67.5 miles/1 hour__ 5. __$49.95 for 5 pizzas__ 6. _$25/1 Hour__ 7. _x = 6.5__ NAME _____________________________________________ DATE ____________________________ PERIOD _____________ 8. The table shows the relationship between time and distance. Graph the data. Find the slope and explain what the slope represents. Speed Time (s) Distance (m) 1 5 10 4 20 40 8._The slope = 5, they travel 5 m in 1 second. ____ 9. What is the constant rate of change shown in the graph below? 10. What is the slope of the line from the table below? Hour 1 2 4 8 Distance 50 100 200 400 10. _The slope is 50__ 11. What is the constant rate of change from the data shown in the table below? Time Temperature 9. ____3 lbs per 1 person_____ 11 A.M . 1 P.M 3 P.M 5 P.M 55 65 75 85 11. _constant rate of change: 3_ NAME _____________________________________________ DATE ____________________________ PERIOD _____________ Write the correct answer in the blank at the right of each question. 12. Simplify. 13. Simplify. 3 3 4 12.__8_____ 2 8 13. ___12____ 2 3 14. Selena babysits on the weekends. The equation y = 12x represents the amount of money she earns. What is the constant of proportionality? 22 14. __k = 12___ 𝑟 15. What is the solution of the proportion 11 = 13 ? 15. _r = 26__ For problems 16-17, determine if the situations represent proportional relationships. Then explain your reasoning. 16. JOBS The table shows the amount Maggie earns each hour she babysits. Earnings($) 12 18 24 Time (h) 2 3 4 17. SHAMPOO The table shows the cost of shampoo at a discount store. Cost ($) Number of Bottles 2.95 1 4.50 2 6.05 3 16. _____Yes, and the proportional relationship is $6 per 1 hour_______ 17. __No, the proportional relationship is not on this problem.____ 18. ___24 kilometers_____ 3 18. Cyclists were 4 finished with their ride when they reached the 18-kilometer mark. How long was their ride? 19. The table shows the cost for ordering a certain number of pieces of chicken. What is the value of x if the cost is proportional to the number of chicken pieces ordered? Pieces of Chicken Ordered Cost 2 3 4 6 $3.00 $4.50 $6.00 x 19.__x = $9.00___ NAME _____________________________________________ DATE ____________________________ PERIOD _____________ For Exercises 20 and 21, determine whether the relationship between the two quantities shown in each table are proportional by graphing on the coordinate plane. Explain your reasoning. 20. 21. Temperature (Degrees) 9.__________________ Celsius Fahrenheit 0 32 5 41 10 50 15 59 20 68 Popcorn 10.________________ Bags of Popcorn Cost ($) 0 0 1 4.50 2 9.00 3 13.50 4 18.00 20.___The is nonproportional relationship._____ 21.___The proportional relationship is $4.50 per 1 bag of popcorn._____ Set up a proportion to solve problems 22-24. 22.___6 gallons = 207 miles__ 22. If it takes 4 gallons of gas to drive 92 miles, how many miles can be driven using 6 gallons of gas? 23._7 hours = 406 miles_ 23. Martin can travel 174 miles in 3 hours. At this rate, how far can he travel in 7 hours? 24._20 minute = 740 miles___ 24. Bart can type 296 words in 8 minutes. At this rate, how many words can he type in 20 minutes?