What can you say about the motion of a body if its velocity-time graph is a straight line state the two possibilities?

Velocity-time graph:Slope of velocity-time graph=Acceleration                                                      =Slope of the straight lineFor a straight line, slope is always constant. Hence, the body moves with uniform acceleration.Possibility 1:Zero acceleration or constant velocityExample:A car moving with uniform velocity on the roadPossibility 2:Increasing velocity (or) positive accelerationExample: Freely falling body

straight line is sloping upwards or is it parallel to time axis. you must have to tell thiss