3 4
5
46
58
70
Linear functions can represent both Carla and
Hours 1
Parrish's lawn-mowing rates. Carla's lawn-mowing
2
rates are represented by the equation y = 9.5x + 15,
Cost 22 34
where x represents the number of hours she works
and y represents the cost to her customers. Parrish's
lawn-mowing rates are shown in the table. Who charges more per hour?
1. What is the constant rate of change that represents how much
Carla charges each hour?
2. What is the constant rate of change that represents how much
Parrish charges each hour?
3. What is the fixed cost that Carla charges?
4. What is the fixed cost that Parrish charges?
5. Who charges more per hour?