Answer: The relative Price of Hamburger has decreased, so Phillip would be expected to purchase more.
Explanation:
Given that,
Price of Hamburger(H):
Last year = $5 per pound
This year = ​$8 per pound
Price of trout(T):
Last year = $6 per pound
This year = ​$9 per pound
Last year's Relative price of Hamburger = [tex]\frac{H}{T}[/tex]
                                 = [tex]\frac{5}{6}[/tex]
                                 = 0.833
This year's Relative price of Hamburger = [tex]\frac{H}{T}[/tex]
                                 = [tex]\frac{8}{9}[/tex]
                                 = 0.888
The relative Price of Hamburger has decreased, so Phillip would be expected to purchase more.