Question 969646: On a certain day, the temperature was 37 Fahrenheit at 10am and 49 fahrenheit at 1pm. if the temperature rose at a constant rate from 10am to 1pm on that day, what was the temperature at 11am?
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39618)   (Show Source):
Answer by MathTherapy(10552)  (Show Source):
You can put this solution on YOUR website! On a certain day, the temperature was 37 Fahrenheit at 10am and 49 fahrenheit at 1pm. if the temperature rose at a constant rate from 10am to 1pm on that day, what was the temperature at 11am?
Let x be time, with starting time being x = 0. Then y is the temperature at a particular time of the day
We then get: 
Points: (0, 37) and (3, 49)
Slope or m =  , or m = 4
 , or  -------- Equation representing temperature at a certain time of the day
Since 11am is the 1st hour, or hour 1 after 10am, then becomes:  , or  .
Therefore, temperature, 1 hour after 10am, or at 11am = 
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