Q2 Flashcard 4

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other is constant.

Front

Write an equation that represents a proportional relationship with a constant of proportionality of 52.

Back

y = 52x

Front

Which equation does NOT represent a proportional relationship?

Back

y = 5x - 7

Front

What is the constant of proportionality in the equation y = 14x?

Back

14

Front

If y = kx, what does k represent?

Back

k represents the constant of proportionality.

Front

How can you determine if a graph represents a proportional relationship?

Back

A graph represents a proportional relationship if it is a straight line that passes through the origin.

Front

What is the slope of the line in the equation y = 3x?

Back

The slope is 3.

Front

If Pizzeria W makes $104 for every 2 pizzas sold, what is the constant of proportionality?

Back

The constant of proportionality is 52.

Front

What does it mean if two quantities are directly proportional?

Back

It means that as one quantity increases, the other quantity increases at a constant rate.

Front

If the equation is y = -2x, what type of relationship does it represent?

Back

It represents a proportional relationship with a negative constant of proportionality.