Chapter 8 - Section 8.3 - Polynomial and Rational Functions - Exercise Set - Page 595: 39

a) 200 million dollars b) 500 million dollars c) 300 million dollars

$R(x)=\frac{1000x^2}{x^2+4}$ a) $x=1$ $R(x)=\frac{1000x^2}{x^2+4}$ $R(1)=\frac{1000*1^2}{1^2+4}$ $R(1)=\frac{1000*1}{1+4}$ $R(1)=\frac{1000}{5}$ $R(1)=200$ b) $x=2$ $R(x)=\frac{1000x^2}{x^2+4}$ $R(2)=\frac{1000*2^2}{2^2+4}$ $R(2)=\frac{1000*4}{4+4}$ $R(2)=\frac{4000}{8}$ $R(2)=500$ c) $500-200=300$