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A thermostat is set so that the temperature in laboratory freezer stays within 2.5 degrees F of 2 degrees F. Write and solve an absolute value equation to find the maximum and minimum temperatures in the freezer.

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Yna9141
The absolute value gives the positive value of any given number inside the symbol. The absolute equation is,
 
                 2.5 = I d - 2I

The values of d can be calculated through,
      2.5 = d - 2 
          d = 4.5

Also,
     -2.5 = d - 2
      -2.5 + 2 = d 
      d = -0.5

Thus, the maximum value of the temperature is 4.5 and the minimum value of the temperature is -0.5. 

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