Choose the best graph that represents the linear equation: 3y + 9x = 21
a. Graph A
b. Graph B
c. Graph C
d. Graph Dā
![Choose the best graph that represents the linear equation 3y 9x 21a Graph Ab Graph Bc Graph Cd Graph D class=](https://us-static.z-dn.net/files/d54/e165e4dce00b94f136373b70eab3c6e8.jpg)