A dog boarding facility charges daily based on the dog's weight. If the dog weighs under 15 lbs, the rate is $30. If the dog is between 15 and 50 lbs, it is $35. If the dog is 50 lbs or more, the charge is #35 plus $3 for each additional 5 lbs over 50 lbs. Which of the following BEST defines the quantity and scale for the x-axis for a piecewise linear graph of the fee structure?
The quantity on the x-axis represents the weight of the dog, and the scale on the x-axis would depend on the range of weights of the dogs that may be relevant to this facility. If the range of weights is from 5 lbs to 100 lbs, for example, the scale on the x-axis could be increments of 5 lbs (e.g. 0, 5, 10, 15, 20, etc.).
