In Testing an Experimental Diet for Goats,it Was Determined That

Short Answer

In testing an experimental diet for goats,it was determined that the (average)live weight w (in kilograms)of a goat was statistically a linear function of the number of days d after the diet was started where 0 ≤ d ≤ 100.The weight of a goat starting the diet was 12 kg and 25 days later it was 20 kg.Determine w as a linear function of d and find the average weight of a goat when d = 80.