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Plzzzz help quickly!!! Worth 20 points will mark brainliest! The data below shows cell phone bills for various numbers of minutes used.
What does the slope of the line of best fit represent?

A. There is a charge of $0.15 for each minute of use.

B. There is a charge of $0.45 for each minute of use.

C. There is a monthly fee of $15.00

D. There is a monthly fee of $45.00

Plzzzz help quickly Worth 20 points will mark brainliest The data below shows cell phone bills for various numbers of minutes used What does the slope of the li class=

Respuesta :

sharkmansaysmc

Answer:

A

Step-by-step explanation:

Answer:

Option: A is the correct answer.

A.    There is a charge of $0.15 for each minute of use.

Step-by-step explanation:

We know that the slope of the line of best fit represents the ratio of change in the dependent variable to the change in the independent variable.

Here the dependent variable is: Phone bill

and the independent variable is the number of minutes used.

Let the line of best fit passes through (100,60) and (300,90).

This means that the slope of the line of best fit is:

[tex]Slope=\dfrac{90-60}{300-100}\\\\Slope=\dfrac{30}{200}\\\\Slope=0.15[/tex]

Hence, the answer is: Option: A