Question

An electric company charges $0.018 per kilowatt hour or the first 500 kWh and $0.056 per kWh after 500 kWh. Write a piece wise function to describe this

Answer 1

f(x)= 0.018x, for 0≤x≤500
f(x)= (0.018×500) +0.056(x-500), for x>500