A dog boarding facility charges daily based on a 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 50lbs 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?

Question

• weight; 1
• weight; 10
• amount; 1
• amount; 10

Answer 1

The best option for the quantity and scale for the x-axis for a piecewise linear graph of the fee structure would be "weight; 1". This is because the weight of the dog is the independent variable that determines the rate and is the most relevant factor in this scenario.