Are these equations discrete or continuous?
1. f(x)=200x-49.95
2. f(x)=99+.50x
3. f(x)=500-60x
4. f(x)=500+60x
5. f(x)=18+5x
6. f(x)=13+3x
7. f(x)=40-3.5x
8. f(x)=200-49.95x
9. f(x)=.50x-99
10. f(x)=15+0.4
11. f(x)=18-0.5x
12. f(x)=3.5-40x
13. f(x)=3-0.10x
14. f(x)=15+0.01x
15. f(x)=x+15
16. f(x)=1.5+0.4x