Question 437971
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi
shade the portion of the number line between the respective numbers...
putting an open circle on the numbers as they are not included.
3 < x < 6  and 9 < x < 12
{{{number_line( 600, -1, 15, 3,6,9,12 )}}}