the graph represents the function where electricity usage in kilowatts per hour of a clock - radio varies…

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? 0.25 kwh per day 0.50 kwh per day 2.40 kwh per day 4.00 kwh per day clock radio electricity usage

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? 0.25 kwh per day 0.50 kwh per day 2.40 kwh per day 4.00 kwh per day clock radio electricity usage

Answer

Explanation:

Step1: Recall constant - of - variation formula

For a direct variation $y = kx$, where $k$ is the constant of variation. We can estimate $k$ using two points on the line. Let's assume the line passes through $(0,0)$ and approximately $(8,2)$.

Step2: Calculate the constant of variation

Using the formula $k=\frac{y}{x}$, substituting $x = 8$ and $y = 2$, we get $k=\frac{2}{8}=0.25$.

Answer:

0.25 kWh per day