Displacement vs time graph

Q. A displacement$\left(s\right)$ v/s time$\left(t\right)$ curve of a particle is shown in the figure. The maximum instantaneous velocity of the particle is around the point

1. $S$
2. $R$
3. $P$
4. Can't say

Q. In displacement-time graph (plotted in x-y plane), displacement is taken along axis.

1. x-axis
2. y-axis
3. z-axis

Q. The displacement-time graph & the position time graph will never coincide .

1. True
2. False

Q. If the slope of a line on x-t curve is positive, the velocity is negative.

1. True
2. False