Direct Variation

Front

What is another name for constant of proportionality?

Back

constant of variation

Front

Which of the following is the equation format for direct variation?

Back

y = kx

Front

What is the equation for the given graph if it passes through the origin and has a slope of 30?

Back

y = 30x

Front

Determine if there is a constant of proportionality, k. If there is a k, what is it?

Back

k = 8

Front

Is the relationship in the table a direct variation?

Back

No

Front

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

Back

It represents the ratio of y to x.

Front

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

Back

y = 5x

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 graph of a direct variation equation like?

Back

It is a straight line that passes through the origin.

Front

If y = 12 when x = 3, what is the constant of variation k?

Back

k = 4