Answer:
y = 1/2x -1
The slope is increasing by 2/4, which can be reduced to 1/2. You can find this by doing rise over run.
The y intercept is -1
The answer is 8.25
110/x=100/7.5
<span>(110/x)*x=(100/7.5)*x - </span>
<span>110=13.333333333333*x -
</span>(13.333333333333) to get x
<span>110/13.333333333333=x </span>
<span>8.25=x </span>
x=8.25