Question

Please solve this!!!
(BTW this is related to co-ordinate geometry)

Answer 1

y=b is a horizontal line parallel to x-axis and b unit above x-axis.Similarly , y=-b is also a horizontal line parallel to x-axis and b unit below the x-axis.
So, distance between y=b and y= -b is b+b= 2b.

Answer 2

Answer:

y=b is a horizontal line parallel to x-axis and b unit above x-axis.Similarly, y=-b is also a horizontal line parallel to x-axis and b unit below the x-axis. So, distance between y-b and y= -b is b+b= 2b.