D, he is moving at a constant spees
Because if there is no more supplies for the sale, the sale can't apply to nothing!
1) You need to solve t -

2) Then solve f

3) As it's constant it is<span> still 10m/s
4) You need to </span><span>use the</span> time from part 1 times 10m/s
5) Use Pythagorean theorem with <span>10m/s and vf
I am pretty sure it will help you.</span>
it is the last one before the time
x intercept = (1,0)
y intercept = (0,-3)
if you have more problems you an use desmos.com and go to where it says f(x) expression