"write the equation for this situation: the population,p, in thousands, can be approximated by the sum of 4 and one-half times the years since 1985,d. then graph the equation and use the graph to determine the population in the town in 1985.
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to graph this function, simply plug in points and graph. or plug it into a graphing calculuator. To find the population in the town in 1985, you must determine how many years 1985 is from 1985. Then plug that value into the equation , namely p(x)=4+(1/2)x everywhere you see x .
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