Question 143019: You are trying to decide how to most efficiently use your oven. You do not want the oven running at a high teperature when it is not baking, but you also do not want to wase a lot of time waiting for the oven to reach the desired baking temprature.
The instruction manual on the industrial oven suggests your oven temperature will increase by 45 degrees Fahrenheit per minute. When the oven is initually turned on, the temperature is 70 degrees Fahrenheit. What will the temperature of the oven be after 7 minutes? Write an expression and explain how you arrived at you answer.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! You are trying to decide how to most efficiently use your oven. You do not want the oven running at a high teperature when it is not baking, but you also do not want to wase a lot of time waiting for the oven to reach the desired baking temprature.
The instruction manual on the industrial oven suggests your oven temperature will increase by 45 degrees Fahrenheit per minute. When the oven is initually turned on, the temperature is 70 degrees Fahrenheit. What will the temperature of the oven be after 7 minutes? Write an expression and explain how you arrived at you answer.
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You are given the y-intercept as 70 and the slope as 45.
EQUATION:
f(x) = 45x + 70 where x is the number of minutes it has been "on".
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f(7) = 45*7 + 70 = 385 degrees F
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Cheers,
Stan H.
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