The graph below represents the price of sending text messages using the services of a phone company. What is the constant of proportionality?
8
14
16
48
![The graph below represents the price of sending text messages using the services of a phone company What is the constant of proportionality 8 14 16 48 class=](https://us-static.z-dn.net/files/d8a/49e80e3dc0f7ba0b7777eeddd2466cbb.gif)