Christopher is preheating his oven before using it to bake. The initial temperature of the oven is 75° and the temperature will increase at a rate of 25° per minute after being turned on. What is the temperature of the oven 6 minutes after being turned on? What is the temperature of the oven tt minutes after being turned on?

Temp after 6 minutes:
Temp after tt minutes:

Temp after 6 minutes: 75° + (25°/min * 6 min) = 75° + 150° = 225°

Temp after tt minutes: 75° + (25°/min * tt min) = 75° + 25tt°