Which therapies are associated with ultrasound? check all that apply.

lithotripsy
physical therapy
gamma radiation
improved drug delivery
vision therapy
dental hygienics

1,2,4,6

  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.

+15-35=-20

going in opposite directions