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The graph shows Ms. Padilla's monthly cell phone cost, where x is the number of minutes she uses the phone during the month.

Which statements are true? Select each correct answer.

options:

a. The x-intercept is meaningless here.
b. Ms. Padilla is charged $5/min.
c. Ms. Padilla is charged $0.04/min.
d. Ms. Padilla pays $16 for months she makes 0 min of calls.

The graph shows Ms Padillas monthly cell phone cost where x is the number of minutes she uses the phone during the month Which statements are true Select each c class=

Respuesta :

semsee45

Answer:

True statements:  a, c and d

Step-by-step explanation:

The x-intercept of the line would be negative.  As it is impossible to make a negative number of calls, the x-intercept is meaningless.

To find the amount that Ms Padilla is charged per minute, find the slope of the line by substituting the two given points into the slope formula:

[tex]\implies \sf Slope=\dfrac{Change\;in\;y}{Change\;in\;x}=\dfrac{21-16}{125-0}=\dfrac{5}{125}=0.04[/tex]

Therefore, Ms Padilla is charged $0.04/min.

From inspection of the graph, the y-intercept is (0, 16).

Therefore, Ms Padilla pays $16 for the months she makes 0 minutes of calls.

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