Finding the Constant of Proportionality

Front

Proportional relationship between time (days) Layla spends making porch swings (x) and number of swings built (y). What is the constant of proportionality? Remember: k=y/x

Back

k = 1/5

Front

From the table, determine if the relationship is proportional? What is the equation?

Back

Yes, it's proportional. y = 4.5x

Front

Does the table show a proportional relationship? What is the equation?

Back

Yes, y = 6x

Front

Does the table represent a proportional relationship? Write an equation for the table.

Back

Yes, y=5x

Front

What characteristic do you look for in the table in order to decide whether the relationship is proportional?

Back

The amount earned divided by the number of days is constant for each pair of values in the table.

Front

A submarine dives 300 feet every 2 minutes, and 6,750 feet every 45 minutes. Find the constant rate at which the submarine dives.

Back

150 ft. per minute

Front

For the equation: k=y/x, the variable k is called the...

Back

Constant, and it represents the constant rate of change or constant ratio between x and y

Front

The table shows a proportional relationship. Which equation represents this information correctly? Options:

y = 9.50x

,

y = 9x

,

y = 9.25x

Back

y = 9.50x

Front

Write an equation using the constant of proportionality.

Back

y = 4x

Front

The table shows a proportional relationship. Select the equation to match the table. Options:

y = 1x or y = x

,

y = 18x

,

y = 6x

,

y = y

Back

y = 1x or y = x