1.	A can of cat food costs $1 less than a can of dog food. Find the cost of a can of cat food if the dog food costs $2, $3, $4, or $5.
		A.	$3, $4, $5, $6	B.	$2, $3, $4, $5
		C.	$1, $2, $3, $4	D.	$4, $5, $6, $7
		Hint
	2.	A can of cat food costs $1 less than a can of dog food. Write the function rule.
		A.	Δ	B.	Δ + 1
		C.	Δ − 1	D.	Δ + 2
		Hint
	3.	Masa always spends 2 more weeks at summer camp than Kana. Use a function table to find how many weeks Masa spends at summer camp when Kana spends 1, 2, 3, or 4 weeks at camp.
		A.	2, 4, 6, 8	B.	3, 4, 5, 6
		C.	2, 3, 4, 5	D.	1, 2, 3, 4
		Hint
	4.	Masa always spends 2 more weeks at summer camp than Kana. Write the function rule.
		A.	2 − Δ	B.	Δ − 2
		C.	Δ + 2	D.	Δ × 2
		Hint
	5.	Since they began playing baseball, Shane always hits 4 fewer homeruns each season than Lyle. Use a function table to find how many homeruns Shane hits in a season when Lyle hits 4, 6, 8, or 10 homeruns.
		A.	16, 24, 32, 40	B.	0, 2, 4, 6
		C.	8, 10, 12, 14	D.	8, 12, 16, 20
		Hint