Rate or velocity is always distance divided by time
369 km / 3 sec =
123 kilometers per second
we are given

Since, we have to find inverse function
step-1:
Set y=f(x)
It is already there
step-2:
Switch x and y

step-3: Solve for y
We can take cos on both sides

we can simplify it

now, we can solve for y


..............Answer
Y=mx+b
m=slope
slopes of parallel lines are the same
y=3/4x+2
the slope is 3/4
the slope of a line parallel to that is 2/3