Direct Variation

Front

What is Direct Variation?

Back

Front

Back

'k' is the constant of proportionality, indicating how much one variable changes in relation to the other.

Front

Is the relationship in the table a direct variation if the values do not maintain a constant ratio?

Back

No, if the values do not maintain a constant ratio, it is not a direct variation.

Front

What is the equation format for direct variation?

Back

Front

How do you find the constant of proportionality 'k'?

Back

Front

If y = 8 when x = 1, what is the constant of proportionality 'k'?

Back

k = 8.

Front

If y = 4 when x = 2, is this a direct variation?

Back

Front

What is the constant of variation if y = 10 when x = 5?

Back

k = 2.

Front

If the relationship between two quantities is not linear, can it still be a direct variation?

Back

No, direct variation must be linear.

Front

What is an example of a direct variation equation?

Back