Proportional Graphs and C O P

The graph shows the cost of oranges per bag. What is the cost of 4 bags of oranges?

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Samir believes this graph is proportional and that the C.O.P is 3. Do you agree with the Samir. Explain why or why not.

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The graph shows the relationship between x, the amount of time in hours, and y, the distance traveled in miles, by a probe before it reaches Mars. Does the graph represent a proportional relationship? Why or Why Not. Then Determine the number of miles the probe travels in 5.5 hours.

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The graph below shows the total distance, in miles, traveled by a towboat over time, in hours. Which statement BESTS described the meaning of the coordinates of point F on the graph.

• It shows the unit rate of the graph in hours per mile.

• It shows the unit rate of the graph in miles per hour.

• It shows the time, in hours, it takes the towboat to travel 1 mile

• It shows the distance traveled, in miles, by the towboat after 5.25 hours.

What is the equation for something to be proportional?

• y=kx

• x=ky

• k=yx

• y=x/k

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

• y = 1/2x

• x = 1/2y

• y = 2x

• k = x

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

• 15k

• x = 15y

• y = 0.06x

• y = 15x

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

• x

• 14

• y

What is the constant of proportionality?

• 4

• 12

• 3

• 1/3

What is the constant of proportionality?

• 7

• 3.3

• 3/10

• 14