Checking Proportional Relationships

What is a ratio?

• an equation stating that two ratios are equal to each other

• a comparison between two things or numbers using division

• the thing on the front of an old fashion plane

• mixed numbers

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Does this graph represent a proportional or non-proportional relationship?

• Proportional

• Non-Proportional

Tags

CCSS.7.RP.A.2D

On the first day of the month, Jane has $500 in her checking account. Each time she buys lunch, she spends $8. If Jane purchases x lunches in a month, how much money will remain in her account, in terms of x?

• 500-8x

• 500+8x

• 8-500x

• 8+500x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which of the following descriptions matches the graph shown below?

• initial fee of $100 plus $25 per month

• initial fee of $100 plus $50 per month

• initial fee of $100 plus $75 per month

• initial fee of $25 plus $100 per month

Tags

CCSS.HSF.LE.B.5

Which equation represents a proportional relationship between x and y?

• y = 2x + 3

• y = 3x

• y = x^2

• y = x/2 - 1

Tags

8.5.F

Table A and B both represent Linear Relationships.

Based on the information in the tables, which statement is true?

• Table A represents a proportional relationship and Table B represents a non-proportional relationship.

• Table B represents a proportional relationship and Table A represents a non-proportional relationship

• Table A and Table B represent proportional relationships. 

• Table A and Table B represent non-proportional relationships.

Tags

8.5.F

The table and graph represent the price of hand soap based on the number of fluid ounces.

Which statement regarding the cost in relation to fluid ounces is true?

• • Both the table and graph represent non-proportional relationships, because neither the table nor graph include the ordered pair (0, 0).

• • Both the table and graph represent proportional relationships, because both the table and graph include the ordered pair (0, 0).

  
  

• • Only the graph represents a proportional relationship, because only the graph includes the ordered pair (0, 0).

  
  

• Only the table represents a proportional relationship, because only the table could include the ordered pair (0, 0).

Tags

8.5.H

Which situation does NOT represent a proportional relationship?

• A car travels at a constant speed of 60 miles per hour

• A recipe calls for 2 cups of sugar to make 24 cookies

• A plant grows 3 inches every week

• A phone company charges $25 for the first minute of a call and $0.50 for each additional minute

Tags

8.5.H

Which set of ordered pairs represents a proportional relationship?

• Table A: (1,2), (2,4), (3,9)

• Table B: (1,3), (2,6), (3,9)

• Table C: (1,1), (2,4), (3,9)

• Table D: (1,2), (2,5), (3,8)

Tags

8.5.H

The table represents a ​ (a)   relationship because it does not have a ​ (b)  

• non proportional

• constant of proportionality

• proportional

• negative number

• matching values

• negative

• positive

• slope

Tags

8.5.H