in the absences of friction, gravity, and all other external forces, what kind of speed will an object display if it’s travel from the bottom to the top of an inclined plane

Constant speed.

Explanation:

In the absence of friction a body will not accelerate and hence the speed remains constant.

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.