S(t) Is the Position of a Body Moving Along a Coordinate

Short Answer

s(t) is the position of a body moving along a coordinate line, where $t \geq 0$ , and s(t) is measured in feet and t in seconds. $s(t)=1+6 t-t^{2}$
a. Determine the time(s) and the position(s) when the body is stationary.
b. When is the body moving in the positive direction? In the negative direction?
c. Sketch a schematic showing the position of the body at any time t.