The proportional relationship between the number of hours a business operates and its total
cost of electricity is shown in the following graph.
Total cost (dollars)
1604
140-
120-
100-
80-
60-
40+
20-
A
Cr.
3 4 5
Number of hours
S
7
89
Which statements about the graph are true?
10

Question

04-08-2022
Mathematics

Answered

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The proportional relationship between the number of hours a business operates and its total
cost of electricity is shown in the following graph.
Total cost (dollars)
1604
140-
120-
100-
80-
60-
40+
20-
A
Cr.
3 4 5
Number of hours
S
7
89
Which statements about the graph are true?
10

Sagot :

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Abidemiokinidn Abidemiokinidn · Answer 1 · 2022-08-09T12:32:02-04:00

The total cost of electricity when the business operates for 4 hours is correct.

Slope of a line

The slope of a line is also known as rate of change, The formula for calculating the slope of a line is expressed as:

Slope = y2-y1/x2-x1

If the proportional relationship between the number of hours a business operates and its total cost of electricity is shown in the following graph.

Using the coordinate points (1, 20) and (2, 40)

Determine the slope

Slope = 40-20/2-1
Slope = 20/1

Slope = 20

This shows that the total cost of electricity is $20 when operating business for 1 hour.

According to the coordinate point A (4, 120), this shows that the y-coordinate of point A is represents the total cost of electricity when the business operates for 4 hours.

Learn more on rate of change here: https://brainly.com/question/8728504

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Sagot :

Slope of a line

Determine the slope

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