I don't understand what the question is apparently. I've tried for hours and I cannot figure out the process of answering a question like this! Would someone be able to break down the steps to understand and answer.

Step-by-step explanation:

1) one half  = 1 + 1/2

Required butter for a recipe = 2/3 c

Required butter for a half recipe =

Now , Required butter for the increased (1 1/2) recipe = c

2) Increased recipe by one third ⇒ 1 + 1/3

Required butter for a recipe = 4/5 c

Required butter for 1/3 of the recipe =

Now , Required butter for the increased (1 1/3) recipe is

3) Increased recipe by one half = 1 + 1/2

Required butter for a recipe =  7/8 c

Required butter for 1/2 of the recipe =

Now , Required butter for the increased (1 1/2) recipe is

answer: the first graph

step-by-step explanation: