I need help with #4 only

Which graph correctly shows the system of equations {y=12x+2y=−12x+6?

Which is one way the executive branch checks the power of the judicial branch a. the executive branch can propose constitutional amendments. b. the vice president breaks ties in the senate. c. the president can propose new laws to congress. d. the president has the power to appoint judges.

What were some reasons as to why britain and france followed a policy of appeasement when dealing with german, italian and japanese aggression (give me 3)? what did this policy lead to?