Mathematics Relaxing game

Differential Calculus Rule: Form of Function Sum of Two Functions y = f(x) + g(x)Difference of Two Functions y = f(x) - g(x) Product Rule y = f(x) . g(x) Quotient Rule y = f(x) / g(x)

Pretend that the y axis the opposite, I made a mistake

Have you watched the part in ai sponge when squidward gets the quiestest and longest stroke