They both have to be above the x axis, which makes B incorrect. B will be below the x axis. If you have a graphing calculator or know where there is one of the net, you can try it.
A and D are both wrong. The 1/2 does not become 2. What will happen is that 2 will make the graph wider.
There's only 1 answer left and that is
C <<<<<===== answer.
C reflects right across the y axis.
Answer: Look below
Step-by-step explanation:
1(10x-6y)=-16
3(5x+2y)=66
10x-6y=-16
15x+6y=66
-25x=50
x=-2