Westside Energy charges its electric customers a base rate of $6.00 per month, plus 15€ per kilowatt-hour (kWh) for the first 300 kWh used and 2€ per kWh for all usage

over 300 kWh. Suppose a customer uses x kWh of electricity in one month. (a) Express the monthly cost E as a piecewise defined function of x. (Assume E is measured in dollars.) E(x) = Need Help? (b) Graph the function E for 0 sxs 600. E 60 50 L 40 30 20 10 E 60p 50 40 30 20 10 if 0 sxs 300 Read It if 300 < x 100 200 X 300 400 500 600 100 200 300 400 500 600 Watch It E 100 80 60 40 20 X 100 200 300 400 500 600 E 60 50 40 V 30 20 10 3 100 200 300 400 500 600