Function, Linear, Proportional

The mapping shown is:

• Not a function because there are more y's than x's.
• Not a function because  the x-value of 5 goes to multiple y values.
• A function because all of the x values are different.
• A function because all of the y values are different.

Tags

CCSS.8.F.A.1

The graph shown is:

• A linear function but not proportional.
• A function, but not linear or proportional.
• A proportional function.
• Not a function, linear or proportional.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The graph shown is:

• A linear function but non proportional
• Not a function because it is not a straight line.
• Proportional because it goes through the origin.
• A function but not linear or proportional.

Tags

CCSS.7.RP.A.2D

The graph shown is:

• Not a function because it doesn't go through the origin.
• A linear function but not proportional.
• A nonlinear function.
•  A proportional function because it is a straight line.

Tags

CCSS.8.F.A.3

The mapping shown is:

• Not a function, because there are letters.
• Not a function, because two different numbers go to C.
• A function, because none of the x values go to more than one y value.
• A function, because the numbers are in order.

Tags

CCSS.8.F.A.1

The table shown is:

• Proportional because it goes through the origin.
• Linear, because there is a pattern.
• A function, because all of the x values are different.
• All of the above.

Tags

CCSS.HSF-LE.A.1B

The table shown is:

• Linear, because it is going up by 2 each time.
• Proportional, because 1 goes evenly into 4 and 2 goes evenly into 6.
• A function, because none of the x values are repeated.
• Not a function because it doesn't start at zero.

Tags

CCSS.8.F.A.3

Mary buys concert tickets for $45 each plus a service fee of $15 for the order.

This situation is:

• Proportional, because you can figure out the total cost.

• Linear, because all of the tickets are the same price, but non proportional because you add the service fee

• Not a function, because you have to pay a service fee.

• A function but non linear because each ticket costs more than the fee.

Tags

CCSS.8.F.A.3

Each person who attends a seminar must pay $120 for their seat plus $50 for instructional materials.
This situation is:

• Proportional, because both the seat and instructional materials are per person with nothing extra.
• Non linear, because each person has to pay for two things.
• Not a function because each person has to pay for two things.
• Non proportional, because of the cost of the instructional materials added on.

Tags

CCSS.8.F.A.3

The table shown is:

• Proportional, because it is going up by 2 each time.
• Linear, because it is going up by two each time.
• Not a function, because 1 appears in the table twice.
• A function but non linear, because it doesn't start at zero.

Tags

CCSS.8.F.A.3