Question

The relationship between the number of pounds (lb) of beef and the total cost

in dollars is shown in the graph. What is the unit price of beef?
Cost (dollars)
25
20
15
10
5
O
C
A.
B.
2
3 4
Weight (pounds)
$10
2 lb
1 lb
$5
115
11
D. 5
5

Answer 1

C. $5/1 lb

Explanation:

a unit price (= the price for one unit) is in this case (1 unit = 1 lb) the price for 1 lb of beef.

we look in the graph at 1 lb (on the x-axis : the horizontal axis) and go up to the line and from there left to the y-axis (the vertical axis) and find $5 as price.

so, the unit price is

$5/1 lb