8.25x= 15 so....
15/8.25=x so....
1.81~=x so....
To the nearest dollar it 2$/lb
Slope tells the steepness of the graph
y=mx+b
m=slope
so if m is bigger,t hen sloe is bigger
y=5x+0
slope is 5
y=1x+500
slope is 1
y=5x is steeper
proportional because 1*5/3*5=5/15