Question
Represent 
on the number line.
Solution
Mark the distance 5 units from a fixed point A on a given line to obtain a point B such that AB = 5 units. From B, mark a distance of 1 unit and mark the new point as C. Find the mid-point of AC and mark that point as O. Draw a semicircle with centre O and radius OC. Draw a line perpendicular to AC passing through B and intersecting the semicircle at D.
Then, 
Now, let us treat the line BC as the number line, with B as zero, C as 1, and so on. Draw an arc with centre B and radius BD, which intersects the number line in E.
Then, E represents 
