Direct Variation Practice

Front

What does 'k' stand for in the direct variation equation?

Back

Constant of proportionality.

Front

The phrase 'y varies directly with x' means a relationship is a direct variation. True or False?

Back

True.

Front

Which of the following graphs represents a direct variation? A, B, C, or D?

Back

C.

Front

If y = 14 when x = 6, which function represents the direct variation between x and y?

Back

y = 7/3x.

Front

Is the relationship in the table a direct variation? Yes or No?

Back

No.

Front

What is the general form of a direct variation equation?

Back

y = kx, where k is the constant of proportionality.

Front

If k = 5, what is the value of y when x = 4 in a direct variation?

Back

y = 20.

Front

What does it mean if two variables have a direct variation?

Back

One variable is a constant multiple of the other.

Front

How can you determine if a set of points represents a direct variation?

Back

Check if the ratio of y to x is constant for all points.

Front

What is the constant of proportionality in the equation y = 3x?

Back

3.