Question

show by means of graphical method that:
v=u+at
where the symbols have their usual meanings.

Answer 1

V=final velocity
U=Initial velocity
A=Acceleration
T=time

Here is your answer

Answer 2

Refer to the above attachment !! 

These are 

• v = u+ at 
• s = ut+1/2 a t^2 
• v^2-u^2 = 2 as