Verified answer

1) Parametrize the line based on distance traveled (s).

I think this is to find

x =f(s) and y =g(s) where f and g are functions of s

the simplest solution is

x = s

y = 2.2s - 1.9

2) This is easy if you know that dx/dt = v

then x = integral vdt = integral (6.2 dt) = 6.2 t + xo (1)

Now when t =0 then x = 0

Substitute into (1)

0 = 6.2 * t + xo = 6.2 * 0 +xo ==> xo = 0

then x = 6.2t

Substitute into y=2.2x - 1.9 then y =13.64 t - 1.9

Then x = 6.2t and y =13.64 t - 1.9

is the solution for #2