You travel 1,530 m at an average velocity of 24 m/s and then travel in the opposite direction with an average velocity of 33 m/s for 9.0 seconds. What is your average velocity for the entire trip? Only report your numerical answer. That means no units! Use one decimal place for your answer.

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.