Here, just add the coefficients. 3x + 3x = 6x.
Answer:
B Graph B and D are functions
Step-by-step explanation:
To be a function, it has to pass the vertical line test. The vertical line test says that if you move a vertical line over the graph, it can only touch the graph once at any one time to be a function.
Graph A fails the vertical line test.
Graph B passes the vertical line test
Graph C fails the vertical line test
Graph D passes the vertical line test
All of the numbers are even so 2
Answer: 2