88 MULTIPLE CHOICE
Question 4
The function y=12x+40 represents the weight (in pounds) of a container
containing x cubic inches of a heavy metal.
How much would a container with 3 cubic inches of this heavy metal weigh?
Hint: x=3. Substitute 3 in place of x in the equation y = 12x + 40, and solve.
A
70 pounds
B
76 pounds
C
4.25 pounds
Points