13. Two utility companies sell electricity in units of kilowatt-hours. The cost of electricity for
company P is shown in the table. The cost of electricity for company M can be found by using
the
equation shown, where y represents the total cost in dollars for x kilowatt-hours of
electricity
Electricity Costs
Company P
Company M
Number of Total Cost
y = 0.15x
Kilowatt-hours (dollars)
1,250
150.00
1,650 198.00