Question

An empty 6-gal water jug weighs 0.5 lb. With 3 c of water inside, the jug weighs 2 lb. Which equation models the jug’s weight y when it contains x cups of water?

A) y= 0.5x-0.5

B) y= 0.5x+0.5

C) y= -0.5x-0.5

D) y= -0.5x+0.5

Answer 1

J = jug

J = 0.5x + 0.5

the slope would be 2/3 because that would leave pounds when multiplied by cups.

add 0.5 for the weight of the water jug

y = (2/3)x + 0.5

hope it helps