02:52:22 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.
Which is a reasonable estimate of the constant of
variation?
Clock Radio Electricity Usage
4.5
0.25 kWh per day
0.50 kWh per day
2.40 kWh per day
4.00 kWh per day
4
5
3
Electricity Usage (kWh)
2.5
2
1.5 +
1 +
0.5 +
2
4
1
3
8 9
5
6 7
Sube
leat
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