Question

The table below shows the amount paid for different numbers of items.

A 2-column table has 4 rows. The first column is labeled x with entries 1, 2, 3, 5. The second column is labeled y with entries 0.50, 1.00, 1.50, 2.50.
Determine if this relationship forms a direct variation. Verify your answer.

Answer 1

a reference to the rate of change

a reference to the ratio of y over x

the constant of variation as 0.5

Explanation:

Answer 2

Yes, it is a direct variation. If the ordered pairs form a direct variation, the rate of change is constant and the ratio of y over x is constant. The rate of change, or constant of variation, is 0.5.

Explanation:

That's the sample, I put:

Yes, a direct variation is when the ratio of y/x is constant and the rate of change is constant. In this example, the rate of change is seen as .50.