11. A line with a chosen Cartesian system is called a "'number line " '. 12. They are each prespecified, patterned, easily identifiable sections of an extent of number line . 13. Line printers printed characters, letters and numbers line by line. 14. Here, the integral is expressed as a one-dimensional integral on the real number line . 15. The endpoint can be closed when considering intervals on the extended real number line . 16. The extended real number line includes and as elements. 17. But the further you crawl out on the number line , the sparser the primes become. 18. In the western world, we lay out the number line in a left to right fashion. 19. A marker is placed at zero on the number line and a fair coin is flipped. 20. Already, Busan Transportation Corporation has been pasted to a number Line LRT Lines in the name.