Equation of a straight line

The constant of proportionality of this graph is k = 45. What does it mean?

• The boat travels for 45 miles for every 45 hours

• The boat travels 1 mile for every 45 hours

• The boat travels 45 miles for every 1 hour

• The boat travels 1/45 mile for every 1 hour

Which of the following graphs demonstrates a proportional relationship? (Select ALL that apply)

• 
• 
• 
• 

If Gold's Gym is looking to buy 30 TVs, how much will each one cost?

• 400

• 800

• 1250

• 0

Write an equation that represents the relationship between the weight(x) and the cost(y).

• y = 1/2 x

• y = 1/4 x

• y = 2x

• y = 4x

What type of relationship is represented by this graph?

• Additive because the line does not cross through the origin

• Proportional because the line does cross through the origin

The independent quantities are represented by these values: 0.15, 0.25, 0.5, and 1.0                         

• True
• False

Is this table proportional or non-proportional?

• Proportional
• Non-Proportional

What qualities must a graph have in order for it to be proportional? (Select ALL that apply)

• Must cross through the Origin, point (0,0)

• Must always be positive

• Must be a straight line; has to be linear

Is this an example of a proportional or non-proportional linear situation?

• Proportional / Direct Variation

• Non-Proportional Not Direct Variation

Is the graph proportional or non-proportional?

• Proportional
• Non-Proportional