"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.
simple play on words. We can say this : p(x)=4+(1/2)x
"the sum of 4 (addition) and one half times( multiplication)the years (our x) since 1985"
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How would I graph this equation and use the graph to determine the population in the town in 1985?
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