Question

The graph below shows Giselles total cost for buying CDs using a discount card,

so, which equation best represents the dashed line In the graph?

Answer 1

A is the correct answer hope this helps :)

Answer 2

The given graph shows Giselles total cost for buying CDs using a discount card,

From the graph,

we can see that the y-intercept is 20.

Also the straight line is passing through the point (1,30) and (5,80).

So the slope of the line can be given as

`image`

Hence option [D]