The temperature at Kochi is given by the function: – t2/6+4t+12 where t is the elapsed time since noon. What is the percentage rise (or fall) in temperature between 3.00 PM and 6.00 PM?

2 Answers on this Question

1. temp at 3.oo pm is = 22.5
   temp at 6.oo pm is = 30
   thus, percentage rise= 7.5/30 *100
   =25%

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2. Temp at 3:00pm = -3*2/6+4*3+12 = -1+12+12 = 23
   Temp at 6:00pm = -6*2/6+4*6+12 = -2+24+12 = 34
   thus, the percentage rise = (34-23)/23*100
   = 11/23*100
   = 47.8%

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