Determining Proportionality from a Graph

What is the Constant of Proportionality

• k = $12

• k = $24

• k = $32

• k = $14.75

Find the Constant of Proportionality and Write the Equation for the Line

• y = 0.25x

• y = 7x

• y = 15x

• y = 2.75x

What is the Constant of Proportionality?

• k=46

• k=92

• k=0.2

• not proportional

What is the Constant of Proportionality

• k = 0.45

• k = 4

The graph represents the number of plants produced to the number of seed packets used.

What is the constant of proportionality?

Mathematical Equivalence

ON

Determine if y is proportional to x.

• proportional

• not proportional

Is this graph proportional or non-proportional?

• Proportional

• Non-Proportional

Which of the following graphs does not represent a proportional relationship?

• Graph A

• Graph B

• Graph C

• Graph D

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

Does this graph show a proportional relationship?

• Yes, because it is straight

• Yes, because it goes through the origin

• Yes, because it is straight and goes through the origin

• No, it is not