Answer:
3. vertical line
4. A
hope this helps
have a good day :)
Step-by-step explanation:
First one:
2x + y = -7-1
2x + x + 10 = -8
3x + 10 = -8
3x = -18
x= -6
Idk the second one. SOOORRRYYY!
Five million one hundred sixty five thousand eight hundred seventy four.