Constant of Proportionality (Study)

Maya is selling lemonade at a stand. If she sells each cup for 5 times the cost of making it, what is the constant of proportionality in the equation y=5x, where y is the selling price and x is the cost of making one cup of lemonade?

• k=5

• y=5x

• k=1/5

• y=1/5x

Tags

CCSS.7.RP.A.2B

What is the constant of proportionality?

• k=3

• y=3x

• k=1/3

• y=1/3x

Tags

CCSS.7.RP.A.2B

Write the equation for the table.

Tags

CCSS.5.OA.B.3

Use the table to graph the equation.

Tags

CCSS.5.OA.B.3

Determine which statements about the graph is true. Select all that apply.

• The point (2,10) shows 2 gallons of water were used in 10 minutes.

• The point (10,50) shows 10 gallons of water were used in 50 minutes.

• The point (7,35) shows 35 gallons of water were used in 7 minutes.

• The water was used at a rate of 5 gallons per minute.

Tags

CCSS.7.RP.A.2D

Determine which statements about the graph is true. Select all that apply.

• The point (2,400) shows 2 slick tires would cost $400.

• The highest cost would be $900.

• The point (4,800) shows 4slick tires can travel 800 miles..

• Each slick tire costs $200.

Tags

CCSS.7.RP.A.2D

Abigail and Ron are observing a sloth in their backyard. They notice that the sloth moves in a certain pattern. If they plot the sloth's movement on a graph, what does the point (1,6) represent?

• The sloth travels 1 foot every 6 minutes

• The sloth travels 6 feet per minute

• It takes the sloth 6 minutes to go one foot.

• The sloth moves at a rate of 6 miles per hour.

Tags

CCSS.7.RP.A.2D

Based on this table, constant of proportionality is (a)   . The equation is (b)   .

• k=1/4
• k=2

• k=4

• k=6

• y=1/3x

• y=2x

• y=1/4x

Tags

CCSS.7.RP.A.2C

Noah is calculating the cost of gasoline for his car. He finds that the cost (y) is directly proportional to the amount of gasoline (x) he buys. If the equation representing this scenario is y=3.8x, identify the constant of proportionality.

Tags

CCSS.7.RP.A.2B

Sophia is trying to calculate the slope of a hill. She found that for every 2 meters she climbs up, she moves 1 meter horizontally. Can you help her write the equation for this line?

Tags

CCSS.7.RP.A.2D