A pot of water is being heated up. The temperature of the water can be modeled by this equation with y representing the temperat
ure, in degrees Fahrenheit, and x representing the time, in minutes, that the water has been on the stove. y = 9.5x + 62.1 After how many minutes will the temperature of the water be 138.1°F? Enter your answer in the box.
Given function: y=9.5x+62.1 We have to find the number of minutes x, when y=138.1°F Put value of y in function. 138.1=9.5x+62.1 Subtract 62.1 from both sides. 76=9.5x Divide both sides by 9.5. 8=x or x=8 minutes
Answer: After 8 minutes the temperature of water will be 138.1°