Is the graph below proportional? Explain.
500
400
300
Total cost ($)
200
100
0 2 4 6 8 10
Time (h)
![Is the graph below proportional Explain 500 400 300 Total cost 200 100 0 2 4 6 8 10 Time h class=](https://us-static.z-dn.net/files/dc9/22ec222ab666d919145e6a53c2ec35a0.png)