Sam is selling used books online. The first book the customer buys is $8.00, the second-third book are $7.00 each, the fourth an
1 answer:
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Answer:
(1)
Step-by-step explanation:
We will try:
(1) y = x => 2 = 2 (seems legit)
(2) y = 4x => 2 = 32 (nope)
(3) y = x - 6 => 2 = 2 (yes but actually no because it is proportional relationship)
(4) y = x - 2 => 2 = 2 (like the above)