Direct Variation Practice

Front

What is direct variation?

Back

Direct variation is a relationship between two variables where one variable is a constant multiple of the other. It can be expressed as y = kx, where k is the constant of variation.

Front

What does the constant of variation (k) represent?

Back

The constant of variation (k) represents the ratio of y to x in a direct variation equation. It indicates how much y changes for a unit change in x.

Front

If y varies directly with x and k = 3, what is the equation?

Back

y = 3x

Front

When y = 20 and x = 5, what is the constant of variation (k)?

Back

k = 4 (since k = y/x = 20/5)