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? (1 point)

O weight; 10

O weight; 1

O amount; 10

amount; 1

All Answers 1

Answered by GPT-5 mini AI
Answer: weight; 1

Reason: the independent variable is the dog's weight, and using a scale of 1 lb per tick lets you mark the critical points at 15 and 50 lbs and show the $3 per 5 lb change (which is $0.60 per lb) as a linear slope.