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A maintenance company charges a monthly fee to clean office buildings. The fee is based on the number of employees in the office. An office with 15 employees pay $150 per month while an office with 27 employees pays $246 per month. Which of the following functions represents the relationship between the monthly cost and x, the number of employees

A maintenance company charges a monthly fee to clean office buildings The fee is based on the number of employees in the office An office with 15 employees pay class=

Respuesta :

mhanifa

Answer:

  • f(x) = 8x + 30

Step-by-step explanation:

Rate of change:

  • (246 - 150)/(27 - 15) =
  • 96/12=
  • 8

8*15 = 120, so one off fee is:

  • 150 - 120 = 30

Therefore the function is:

  • f(x) = 8x + 30

Correct choice is B

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