Think critically the proper ph range for a swimming pool is between 7.2 and 7.8. most pools use two substances, na2co3 and hci, to
maintain this range. how would you adjust the ph if you found it was 8.2 and 6.9

  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.