i) So to find position of object at time 20 second, we draw line parallel to y-axis from time 20 and take the point where it intersect then again draw line parallel to x-axis, we get the distance where it intersect the y- axis.

Here position is 8 meter from starting.

ii) Distance travel in 12 second by the object is 6 meter.

iii) Since average speed of object is define as total distance covered by object by total time take. So here total distance is 8 m and total time is 20 second,

Average speed =

= 0.4 m/s