Answer:
slope = 1/2
Step-by-step explanation:
slope = y2-y1 / x2-x1
1 - -2 / 4 - -2 = 3/6 = 1/2
or think of it this way. for every 1 step up you take 2 steps to the right to stay on the line. 1/2
The unit rate per pound is
$1.25
( i divided 3.75 into 3 )
I am not completely sure but Khan Academy might show how to do that. Or it might at least give an example.