Finding the Constant of Proportionality from a Graph

Identify the constant of proportionality.

• k = 5

• k = 1/5

• k = 1

• k = 2.5

• none (not proportional)

Identify the constant of proportionality.

• k = 25

• k = 50

• k = 100

• k = 1/50

• none (not proportional)

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

• $300 is earned after working 4 hours

What makes a graph proportional?

• Straight line

• The line goes through the origin

• Curvy line

• Straight line and the line goes through the origin

Determine the missing value in the table.

• 15

• 3

• 1/3

• 9

Determine the constant of proportionality for the table. Express your answer as y = kx

• y = 30k

• y = 30x

• y = 0.03x

• y = 9x

Determine the constant of proportionality for the table. Express your answer as y = kx

• y = 33x

• y = 0.003x

• x = 33y

• 33k

Determine the constant of proportionality for the table. Express your answer as y = kx

• 33

• y = 1/3x

• y = 33x

• y = 33

k represents

• the constant of proportionality

• the king

• ketchup

• a strikeout

Which equation matches the constant of proportionality?

• x = y

• y = x

• y = kx

• l x w