Directly Proportional

Write the equation for the table given

• y = 1/3x

• y = 3x

• y = 1/2x

Write the equation for the table given.

• y = 16/2x

• y=8x

• y=12x

Which statement best describes the relationship between x and y in the table?

• Proportional

• Not Proportional

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

• y

• x

• 14

The cost of oranges in a grocery store is directly proportional to the number of oranges purchased. Jerri paid $2.52 for 6 oranges. If p represents the cost, in dollars, and n represents the number of oranges purchased, which equation best represents this relationship?

• p=0.42n

• p=2.52n

• p=6n

• p=15.12n

The graph shows the total distance, in miles, traveled by a towboat over time, in hours . Which statement best describes 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.

Is this graph proportional?

• Yes

• No

What is the unit rate in this proportional relationship?

• 60 miles/1 hour

• 120 miles/ 2 hours

• 1 mile/ 1 hour

• Taylor can write 6 words per minute
• Taylor can write 25 words per minute
• Taylor can write 50 words per minute
• Taylor can write 150 words per minute

What is the constant rate of change?

• Not here.

• $80 per month.

• $82 per month.

• $41 per month.