Respuesta :
The graph starts at $75 since the price for call is $50 and 1 hour of work costs $25.
Direct variation is only noticeable at the beginning of the graph after that the function is linear.
Direct variation is only noticeable at the beginning of the graph after that the function is linear.
![Ver imagen Lampa20](https://us-static.z-dn.net/files/d71/9087c46118a5e1a12960ec237408c40e.jpg)
![Ver imagen Lampa20](https://us-static.z-dn.net/files/d1e/9121d6f54c547ead30c2f4aa6c31b17d.jpg)