The graph shows the cost of T-shirts at a local score. 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)
The unit rate for the t-shirt sale can be found by dividing the total cost by the number of t-shirts. In this case, the total cost is $16.50 and the number of t-shirts is 3. Dividing $16.50 by 3 gives a unit rate of $5.50 per t-shirt.
Therefore, the correct coordinate pair that represents the unit rate is (1, 5.5), which is option B.