The diagram shows three vectors.

which best describes a relationship among the vectors?

vectors p and py are components of vector px.
vectors px and py are components of vector p.

Any vector which is made in x-y plane will have some angle with the x axis

in that case we can say that

also for Y direction we can say

so here the two components of vector is given by Px and Py

so we can say that

so correct answer would be

Vectors Px and Py are components of vector P.

  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.

total distance/total time

(85 + 82)/(5+3)

167/8

20 just over