Well, since the first 2.28 is in between the two lines you must find is absolute value.
Absolute value is how many places a number is away from 0.
So the absolute value of 2.28 is 2.28, its just its own number.
If you were working with negative numbers though, for example -7, the absolute value would be 7 because it is 7 spaces away from 0.
Answer:
OR 
Step-by-step explanation:
So first you find the difference between the new cost and the old cost:
450 - 370 = 80
So the increase was 80.
When you write it as a fraction you write the increase ( 80 ) over the starting cost ( 370 ).
Thus the answer becomes 
But you can always reduce it to its lowest terms thus:

HOPE THIS HELPED
Answer:
<em>Srry I need more info.</em>
Step-by-step explanation:
Answer:
I think it will be 2/1
Step-by-step explanation:
Its positive I know that, but since the points go right two and up one that should be the slope if i'm not mistaken.