Julie has a fresh cup of hot coffee that has a temperature of
Five minutes after Julie pours her coffee, its temperature is down to
. Find and , and then write the particular equation for this situation.
degrees above .
1. Use the given information to write the coordinates of two points. Substitute them into the given situation for '
' and ' '.
2. Then you will have two equations and two unknowns.
3. Solve for the unknowns.
Divide one of the equations by the other in other to solve!
What does your model (equation) predict for the temperature of the coffee
minutes later ( minutes after it was poured)?
Did you remember to add
to the answer using the above equation?