Constant of Proportionality

y=kx.  What does the k represent?

(select all that apply)

• constant of proportionality

• kangaroo

• unit rate

• kelvin

Is this table proportional or non-proportional?

• Proportional
• Non-Proportional

Identify the constant of proportionality.

Mathematical Equivalence

ON

Write the equation for the table given.

• y = 1/3x
• y = 3x
• y = 1/2x
• y=x

Identify the constant of proportionality.

Mathematical Equivalence

ON

What makes a graph proportional? Select two answers.

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• straight line through point of origin (0, 0)
• has a constant of proportionality
• a line that connects the dots
• has x-axis and y-axis

What is the constant of proportionality for this table?

• 1/9
• 9
• 8

Determine the missing value in the table.

• 15
• 3
• 1/3
• 9

Identify the constant of proportionality.

• k = 2

• k = 3

• k = 1.50

• k = 2/3

• none (not proportional)

Craig earns extra money as a lifeguard. He earns $37 for 4 hours and $64.75 for 7 hours.  What is the constant of proportionality in dollars per hour? 

• $37 / hour

• $64.75 / hour

• $9.25 / hour

• $18.50 / hour