The electric bill charge for a certain utility company is
$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
.
(d) Determine the slope. Interpret the meaning of the slope in the context of this problem.
The slope is
. This means that the cost (increases or decreases) by
$
for each kilowatt-hour used.
1 answer
The slope is $0.016. This means that the cost increases by $0.016 for each kilowatt-hour used.