4.3 Constant of Proportionality

Front

What is the formula for finding the constant of proportionality?

Back

y = kx

Front

Is the table with the following values proportional? (1, 2), (2, 4), (3, 6)

Back

Yes

Front

What is the point called where the x-axis and y-axis intersect?

Back

The origin (0, 0)

Front

If a table has the values (1, 3), (2, 6), (3, 9), does it represent a proportional relationship?

Back

Yes, k=3

Front

When finding the constant of proportionality, we find it with _____ over ______.

Back

y over x

Front

What does a constant of proportionality of 2 mean in a relationship?

Back

For every 1 unit increase in x, y increases by 2 units.

Front

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

Back

k = 4

Front

What is the relationship between x and y in a proportional relationship?

Back

They increase or decrease at the same rate.

Front

If a table shows (0, 0), (1, 2), (2, 4), is it proportional?

Back

Yes, k=2

Front

What does it mean if a relationship is not proportional?

Back

The ratio of y to x is not constant.