Proportional and Linear Functions

Does this graph represent a proportional relationship?  

• No, because it doesn't pass through the origin.

• Yes, because it doesn't pass through the origin.

• Yes, because it intersects the y axis.

• No, because it intersects the x axis.

Which statement best describes the relationship of x and y in the table?

• Proportional

• Not Proportional

Does the table represent a proportional relationship?

• Yes.

• No.

Does the equation show a proportional relationship?

• Yes

• No

Does the equation show a proportional relationship?

• Yes

• No

Mama Mia’s Pizza sells medium pizza for $7 each and charges a $2 delivery fee per order. Which describes this relationship?

• a non-proportional function with a y-intercept of 2

• a non-proportional function with a y-intercept of 7

• a proportional function with a y-intercept of 2

• a proportional function with a y-intercept of 7 

In the equation y=mx+b, what does the m represent?

• slope

• y-intercept

• linear

• point-slope

Which table does NOT represent y as a function of x?

• Q

• R

• S

• T

Which set of ordered pairs represent y as a function of x?

• A

• B

• C

• D

Mark has 15 toys in his toy box. He adds 2 new toys each month. Which statement below is true?

• This represents a proportional situation because Mark now has 17 toys in his toy box.

• This represents a non proportional situation because Mark began with 15 toys in his toy box.

• This represents a proportional situation because Mark is adding 2 new toys each month.

• This represents a non proportional situation because Mark began with 2 toys in his toy box.