1. If a biker rides west for 50 miles from his starting position, then turns and bikes back east 80 miles. What is his net displacement?
2. If a space shuttle orbits Earth once, what is the shuttle's distance traveled and displacement?
3. Four bicyclists travel different distances and times along a straight path. Which cyclist traveled
with the greatest average speed?

What are you trying to ask?

Answerboth technicians (a) and (b);

You need to be more specific.  i really don't know what a "motion map" is.you can draw a graph of an object's position, distance, displacement, speed,velocity, or acceleration versus time, or you can draw a graph of the object's x-position versus its y-position and not give any information about time at all.if the graph presents position or displacement against time,  then constant velocity is a straight line . . i.e. a line that has  constant slope.if the graph shows speed against time, then constant velocityis a horizontal piece of line.if the graph shows acceleration against time, then constant  velocity is a piece of line that lies on the x-axis . . it's value is zero.