Graphs of Proportional Relationships

Front

What does the point (2, 94) represent in this situation?

Back

After 2 weeks, they save $94.

Front

How do you find the constant of proportionality (k)?

Back

k = y/x

Front

What does the point (0,0) represent in the context of the situation?

Back

No cookies were sold and no money was made.

Front

What is the constant of proportionality if y = 30 and x = 6?

Back

k = 5

Front

True/False: The point (4, 2) means that 4 cookies were purchased for $2.

Back

True

Front

What is a proportional relationship?

Back

A relationship where two quantities maintain a constant ratio.

Front

If y = kx, what does k represent?

Back

The constant of proportionality.

Front

What is the graph of a proportional relationship?

Back

A straight line that passes through the origin.

Front

If the constant of proportionality is 3, what is the value of y when x = 4?

Back

y = 12.

Front

What does the slope of a line in a proportional relationship represent?

Back

The constant of proportionality.