1111111x2000 pls help

i think it will be zero as slope has a formula of difference between initial and final distance divided by itz time interval

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this