Proportional Relationships Equations

Write the equation for the table given

• y = 1/3x
• y = 3x
• y = 1/2x
• x = 3y

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

• y
• x
• 14

What is the formula for a proportional relationship?

• y=kx
• y=k/x
• z=ykx
• y=ky

If the constant of proportionality is 10, which of the following is the correct proportional equation?

• 10=kx
• 10=k
• y=10k
• y=10x

Write an equation for this relationship.

• y=1/5x
• y=1/2x
• y=2x
• y=5x

Which equation shows a NON-proportional relationship of x and y?

• y = 5x
• y = -5.6x
• y = x + 3
• y = 1/2x

Is the given table a proportional relationship? If so, write an equation that relates y to x.

• Yes;  y=1/3x
• Yes;  y=3x
• Yes;  y=5x 
• No

What is the equation for this table? Use y=kx format.

• y=0.125x
• y=8x
• y=2x
• y=5x

Which best describes the equation?
y = 75x

• Proportional
• Nonproportional

Does the table show a proportional relationship? 

• Yes, COP = 7
• Yes, COP  = 0.7
• Yes, COP = 0.14
• Yes, COP = 14/100