Algebra I Chapter 4 Review

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 in the form y = kx, where k is the constant of variation.

Front

What is the general form of a direct variation equation?

Back

The general form of a direct variation equation is y = kx, where k is a non-zero constant.

Front

Back

No

Front

Back

Yes

Front

Back

Yes

Front

Back

4

Front

How can you determine if an equation represents direct variation?

Back

An equation represents direct variation if it can be rewritten in the form y = kx, where k is a constant.

Front

What does the constant of variation represent in a direct variation equation?

Back

The constant of variation (k) represents the ratio of y to x in a direct variation relationship.

Front

If y varies directly with x, and k = 5, what is the equation?

Back

y = 5x

Front

If y = 3 when x = 2, what is the constant of variation?

Back

k = 1.5 (since k = y/x = 3/2)