Li believes that the graph shows a direct variation. why is li incorrect in saying that the graph shows a direct variation? 1) the graph does not have a constant rate of change. 2) when the x-value is 0, the y-value is 1. 3) the slope is negative. 4) the relationship is proportional.

Option 2) When the x-value is 0, the y-value is 1.

Step-by-step explanation:

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Remember that in a direct variation

For x=0, the value of y is equal to zero too

therefore

The graph is not a direct variation , because

When the x-value is 0, the y-value is 1.