, no electricity has been used. Write an equation for that can be used to calculate the amount of electricity that has accumulated as a function of time. What is the relationship between the equations for and ?
Notice that lower-case,
, is a rate function.
Use your equation for
to calculate the total amount of electricity used during this month.
Assume the month has
'Total electrical consumption' is another way to say 'accumulated power.'
Use your calculator to examine the graph of
for this -day period. Then calculate the average amount of electricity used per day during this month. Does you answer match that in problem 6-144? How is this rate represented geometrically on the graph?
Make sure that this graph agrees with your function for