A jeepney ride costs ₱10 fare for the first 4 kilometers, and each additional kilometers adds ₱0.75 to the fare. Use piecewise function F(d) to represent the jeepney fare F in terms of distance d in kilometers.
F(d) =
{10 for d <= 4
{10 + 0.75(d-4) for d > 4
or maybe a step function, but you did not specify