21
QuizMultiple Choice
Cumulative Exam
Question 21 of 50 • CA-Mathematics I A
The graph represents the function where electricity usage in kilowatts per hour of a clock radio varies directly with the number of days it is plugged into the wall current.
Answer
A
0.25 kWh per dayB
0.50 kWh per dayC
2.40 kWh per dayD
4.00 kWh per day