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16. f(x) x2 + 4x - 3For each function in Exercises 1-16, (a) find the simplified form of the difference quotient and then (b) complete the following table. f( x + h) - f(x) X h U U U U 0.1 0.0132. Population change. The undergraduate population at Harbor College was 17,000 and increasing at the rate of 4.2% per year. The undergraduate population after t years, P(t), is given by P(t) = 17,000(1.042). P(6) - P(2) Find .What rate of change does this represent? 6 - 2a) What is the average rate at which the car 1was traveling, in miles per gallon? b} What is the average rate at gas consumption in gallons per mile? 41]. Ga: mileage. At the beginning of a trip. the dnmeter an a ear reads 3111,1531}, and the car has a full tank of gas. At the end oi the trip, the odometer reads 31,[}T?. 11 takes 115 gal of gas to rell the tank