7th Grade- 3rd Nine Weeks Review #2 3.5Represent proportional relationships with equations, tables, and graphs.

Sketch the graph of the equation y = 1/3x + 3.

3.3Given a table of x inputs and f(x) outputs, identify the function rule and continue the pattern.

Which equation describes the relationship shown in the table?

A. y = x + 3 B. y = 3x – 7 C. y = -x + 13 D. y = 2x – 2

1.1Use proportional reasoning to solve mixture/concentration problems.

Sandy works at a coffee show where he pumps mocha flavoring into coffee. The table shows the number of pumps of mocha that he pumps into different sizes of coffee. To keep the same proportion, how many pumps of mocha should he put into an 18-oz travel coffee mug?

1.3Recognize whether info given in a table, graph, or formula suggests a directly proportional, linear, inversely proportional, or other nonlinear relationship.

Ms. Davis baked 24 cupcakes for a party. The table below shows the number of cupcakes each guest will get if cupcakes are divided equally among the guests. What best describes the relationship?A. linear B. exponentialC. inversely proportionalD. directly proportional

7th Grade- 3rd Nine Weeks Review #23.5Represent proportional relationships with equations, tables, and graphs.

Nancy is starting a workout routine. She plans to increase the number of sit-ups she does each day by 5. Which item best representsher plan?

3.3Given a table of x inputs and f(x) outputs, identify the function rule and continue the pattern.

Ivy’s Fresh Eggs transports its eggs in crates. How many crates will 8 trucks carry?

1.1Use proportional reasoning to solve mixture/concentration problems.

To make different mounts of lemonade, Mrs. Balluses different ratios of lemon juice and water.To keep the same concentration, how many oz.of lemon juice should she use for 15 cups of water? A. 12 B. 15 C. 18 D. 20

1.3Recognize whether info given in a table, graph, or formula suggests a directly proportional, linear, inversely proportional, or other nonlinear relationship.

Jim wants a rectangular garden with 200sq. feet. The graph shows some of the options he has for length and width.Which best describes the length and widthof the garden?

7th Grade- 3rd Nine Weeks Review #23.5Represent proportional relationships with equations, tables, and graphs.

Complete the table for the function y = 25x. What would the graph of this functionlook like?

3.3Given a table of x inputs and f(x) outputs, identify the function rule and continue the pattern.

What is the rule for this input-outputtable?A. f(x) = 3x + 3 B. f(x) = x^2 + 3C. f(x) = 2x + 2 D. f(x) = x^2 + 5

1.1Use proportional reasoning to solve mixture/concentration problems.

Laura creates different shades of color when she paints. The table shows the ratios for 8 g of pigment that she mixes with white to get a desired shade. If Martha wants to keep the proportions the same, how many grams of what should she add to 12 g of red to get the desired shade?

1.3Recognize whether info given in a table, graph, or formula suggests a directly proportional, linear, inversely proportional, or other nonlinear relationship.

Jamie works at a car rental office that charges a one-time fee of $35 plus $0.40 a mile to rent a car. He wrote the equation, y = 0.40x + 35, where x is the number of days a car is rented. Which best describes the relationship in the equation>A. linear B. exponential C. inversely proportional D. directly proportional

x y

10  

15  

22  

31  

7th Grade- 3rd Nine Weeks Review #23.5Represent proportional relationships with equations, tables, and graphs.

Which equation bests describes the relationshipbetween the numbers?A. y = 2x B. y = 5xC. y = x + 8 D. y = x – 8

3.3Given a table of x inputs and f(x) outputs, identify the function rule and continue the pattern.

The table represents a bus schedule where buses run every 12 min. during the morning commute. What are the next two entries in the table?

1.1Use proportional reasoning to solve mixture/concentration problems.

Alice mixes her own potting soil. The table below shows the amounts of each ingredient.To keep the same concentrations, how manycups of peat should she add if she uses 40 cupsof sand? A. 22 c B. 23 c C. 24 c D. 25 c

1.3Recognize whether info given in a table, graph, or formula suggests a directly proportional, linear, inversely proportional, or other nonlinear relationship.

Which table shows an inversely proportional relationship?

7th Grade- 3rd Nine Weeks Review Assessment #2 day 5