Constant of Proportionality Review

Front

What is the constant of proportionality in the equation y = 4.3x?

Back

The constant of proportionality is 4.3, which represents the cost of 1 pound of apples.

Front

How do you write the equation for the total cost of x pounds of cheddar cheese that costs $4.25 per pound?

Back

The equation is y = 4.25x.

Front

In the equation y = 14x, what does the number 14 represent?

Back

The number 14 is the constant of proportionality, indicating the cost per unit.

Front

What is the equation for a proportional relationship if the constant of proportionality is 8?

Back

Front

What does it mean for a relationship to be proportional?

Back

A relationship is proportional if it can be represented by a straight line through the origin on a graph.

Front

If y = 5x, what is the value of y when x = 3?

Back

When x = 3, y = 5(3) = 15.

Front

What is the graphical representation of a proportional relationship?

Back

A proportional relationship is represented by a straight line that passes through the origin (0,0).

Front

If the cost of 1 pound of apples is $4.3, how much would 10 pounds cost?

Back

10 pounds would cost 10 * 4.3 = $43.

Front

What is the formula to find the total cost (y) based on the price per pound (p) and the number of pounds (x)?

Back

The formula is y = px.

Front

In a proportional relationship, if x doubles, what happens to y?

Back

If x doubles, y also doubles.