Interpreting Graphs and Proportional Relationships

What is the formula for a proportional relationship?

• y=kx

• y=k/x

• z=ykx

• y=ky

How far was the ladybug at 3 seconds?

• 2 cm

• 4 cm

• 6 cm

• 8 cm

What is the equation for the ant's line?

Which statement matches the graph?

• Taylor can write 6 words per minute

• Taylor can write 25 words per minute

• Taylor can write 50 words per minute

• Taylor can write 150 words per minute

Which statement below accurately represents the graph?

• $100 is earned for each hour worked

• $200 earned for every 2 hours worked
  is the unit rate

• $500 is earned for every 8 hours worked

• $250 is earned after working 3 hours

The table shows a relationship between

x and y.

What is the constant of proportionality?

• 8

• 24

• 4

• 3

What makes a graph proportional?

• Straight Line

• The line goes through (0,0)

• Curvy line

• Straight line and passes through (0,0)

What is the constant of proportionality? Remember to simplify your answer.

• k=5

• k=6

• k=30

• k=1

What is the unit rate of the equation below?
y=2x

• 2

• 1/2

• 4

• x

In the equation y = 14x, what is the constant of proportionality?

• y

• x

• 14

• y=14