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A plumber has a set fee for a house call and charges by the hour for repairs. The total cost of her services can be modeled by c(t)=125t+95. Which statements about this function are true,1 a house call fee costs $95 ,2 the plumber charges $125 per hour, 3 the number of hours the job takes is represented by t

Respuesta :

calculista

Answer:

1, 2 and 3

Step-by-step explanation:

Let

t -----> the number of hours the job takes

C(t) -----> the total cost for the service

we have

[tex]C(t)=125t+95[/tex]

This is the equation of a line in slope intercept form

where

The slope m is equal to [tex]m=125\ \frac{\$}{h}[/tex]

The y-intercept is the point (0,95) ---> The cost is $95 for the value of t equal zero (fee)

therefore

The statements that are true

1 a house call fee costs $95

2 the plumber charges $125 per hour

3 the number of hours the job takes is represented by t

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