Answer:
[tex]y(x) = 0.0732x + 17.32[/tex]
Step-by-step explanation:
The equation for the monthly charge has the following format
[tex]y(x) = ax + b[/tex]
In which y(x) is the cost in function of the number of kilowatt-hours used(x), a is the price of each killowatt hour and b is the fixed(base) charge.
Base charge of $17.32 per month.
This means that [tex]b = 17.32[/tex]
charge of 7.32 cents per kilowatt-hour
Our answer is in dollars. Each dollar is 100 cents. So 7.32 cents is [tex]a = 0.0732[/tex]
Write an equation for the monthly charge y in terms of x, the number of kilowatt-hours used.
[tex]y(x) = ax + b[/tex]
[tex]y(x) = 0.0732x + 17.32[/tex]
