## Algebra: A Combined Approach (4th Edition)

$.22x²+1.79x+215.81$
$f(x)=$ number of Americans under 65 covered by public health programs $g(x)=$ number Americans under 65 covered by private health insurance $f(x)=-0.92x²+2.43x+34.85$ $g(x)=.07x²-0.64x+180.96$ $f(x)+g(x)=-.22x²+1.79x+215.81$