The graph shows the cost of T-shirts at a local store.

A sign in the store window advertises 3 t-shirts for $16.50. Which coordinate pair shows the unit rate for the t-shirt sale?
Responses
A (0, 0)(0, 0)
B (1, 5.5)(1, 5.5)
C (2, 11)(2, 11)
D (3, 16.5)(3, 16.5)

1 answer

The unit rate is the price per t-shirt. In this case, the unit rate is the cost of 1 t-shirt.

The sign advertises 3 t-shirts for $16.50.

So the cost of 1 t-shirt is $16.50 divided by 3.

The coordinate pair that represents the unit rate is (1, 5.5).

Therefore, the correct answer is B.
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