Question

The relationship between the number of pounds (lb) of salmon and the price

in dollars is shown in the graph. What is the unit price of salmon?
Price (dollars)
45
36
27
18
2
3
Weight (pounds)
O A. 18
OB. $1
9 lb
1 lb
$9
4 5

Answer 1

The unit price is $9 /1 lb. Hence, the correct option is D.

Using the information from the graph, we can choose any pair of point to calculate the unit price.

Using the point ;

• (2, 18)

The unit price is : price per dollar / weight

Unit cost = 18/2 = 9

Hence, the unit price is $9 /1 lb. Hence, the correct option is D.