Question

the proportional relationship between the number of hours a business operates and its total cost of electricity is shown in the following graph. which statements about the graph are true? choose all answers that apply: the y - coordinate of point a represents the total cost of electricity when the business operates for 4 hours. the total cost of electricity is $20 when operating the business for 1 hour. none of the above

Explanation:

Step1: Analyze the x - coordinate of point A

The x - coordinate of a point on the graph represents the number of hours the business operates. For point A, the x - coordinate is 4. The y - coordinate of a point on the graph represents the total cost of electricity. So, the y - coordinate of point A represents the total cost of electricity when the business operates for 4 hours.

Step2: Analyze the cost for 1 hour

When \(x = 1\) (number of hours = 1), we can find the corresponding y - value (total cost). Looking at the graph, when \(x=1\), \(y = 20\). So the total cost of electricity is \(\$20\) when operating the business for 1 hour.

Answer:

A. The \(y\) - coordinate of point \(A\) represents the total cost of electricity when the business operates for 4 hours.
B. The total cost of electricity is \(\$20\) when operating the business for 1 hour.