Solve.On a particular day, the amount of pollution A in the air outside a home located near a factory can be modeled by the expression 
, where t is the number of hours after 12 P.M.(i) Graph the equation 
.(ii) At what time of day was the pollution highest?(iii) What was the highest amount of pollution in the air during the day?(iv) In a sentence, describe the trend in pollution that you observe from the graph.
What will be an ideal response?
(i)
(ii) Pollution was highest at 4 P.M.
(iii) The higest amount of pollution was 256 ppm.
(iv) The amount of pollution increases between 12 P.M. and 4 P.M. and then decreases after that.
Mathematics
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