Respuesta :

The lines on the graph that shows the direct variation variation are

  • Line b
  • Line C

How to solve for the variation

Using the slope of a line,  a positive slope tells us that the line is increasing.

From the left to the right of this graph, it shows that a person is climbing. A negative slope tells us that there is a fall.

We have

y = 1/2 x

This shows that it is a positive slope

Read more on direct variation here:

https://brainly.com/question/6499629

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