The absolute value gives the positive value of any given number inside the symbol. The absolute equation is,
Â
         2.5 = I d - 2I
The values of d can be calculated through,
   2.5 = d - 2Â
     d = 4.5
Also,
   -2.5 = d - 2
   -2.5 + 2 = dÂ
   d = -0.5
Thus, the maximum value of the temperature is 4.5 and the minimum value of the temperature is -0.5.Â