The electric bill charge for a certain utility company is

Question

$0.016
per kilowatt-hour plus a fixed monthly tax of
$11.37
. The total cost,
y
, depends on the number of kilowatt-hours,
x
, according to the equation
=y≥+0.016x11.37, x0
.


(b) Determine the cost of using kilowatt-hours.
The cost of using
2000
kilowatt-hours is
$
.

Answer 1

To determine the cost of using 2000 kilowatt-hours, we can substitute 2000 for x in the equation:

y = 0.016x + 11.37

y = 0.016(2000) + 11.37

y = 32 + 11.37

y = $43.37

So the cost of using 2000 kilowatt-hours is $43.37.