Topic 4 Two Variable Relationships

What is the definition of a dependent variable?

• Cause and effect

• Changes in response to another variable

• Affects change on the dependent variable

• I have no idea what dependent means

Tags

CCSS.6.EE.C.9

What is the definition of an independent variable?

• Affects change on the dependent variable

• Changes in response to another variable

• Rely on others around them

• You can make your own mac n cheese

You bought 7 suckers. The suckers you bought were either cherry flavored or strawberry. Identify ONE the unknown and related quantities.

• The number of cherry suckers

• The number of friends who also like those suckers

• The number of candy at the store

• The number of people who also bought the same suckers

Tags

CCSS.6.EE.B.7

You mow lawns to earn some money. You charge $8 for each hour you spend mowing the lawns. Identify the related and unknown quantities.

• The number of middle schoolers mowing and the number of lawns mowed.

• The number of hours you spend mowing and the amount of money you earn.

• The number of people hiring you and the number of people you know.

Tags

CCSS.HSF-LE.A.1B

You plan to play video games for 45 minutes a day. You will only play Fortnite and Minecraft. Write an equation to represent this situation.

• 45+x=y

• x-y=45

• x+y=45

• 45+y=x

Answer explanation

45 minutes is your total. Therefore, the sum of x and y will be your total.

Tags

CCSS.HSA.CED.A.3

Identify the dependent variable in this relationship.

The number of cupcakes you bring is based on the number of students in the class.

• The number of cupcakes

• The number of students

• The number of teachers in the school

• No dependent variable in the statement.

Tags

CCSS.6.EE.C.9

Write an equation 

• x/2=y

• x+2=y

• x-2=y

• x(2)=y

Tags

CCSS.6.EE.C.9

It cost $5 to go to a cooking class. It cost an additional $2 for each dish you make. The equation is 5+2(x)=y. How much would you pay if you made 2 dishes?

• $7

• $10

• $9

• $11

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

You order movie tickets online for you and your friends. You are charged a $2 convenience fee plus $7 per ticket you purchase. Write and equation that shows the relationship between the number of tickets sold, n , and the total the transaction costs, t.

• 7n+2=t

• 2n+7=t

• 2t+7=n

• 2(7)+t=n

Tags

CCSS.HSF-BF.A.1A

Using the equation 17-x=y determine which table represents the equation.

• x. y.

  1. 15

  2. 16

  3. 14

  4. 13

• x. y.

  1. 10

  2. 12

  3. 14

  4. 16

• x. y.

  1. 3

  2. 4

  3. 5

  4. 6

• x. y.

  1. 16

  2. 15

  3. 14

  4. 13

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1