Line or is represented by the following equation X+ Y =2

Which equation completes the system that is satisfied by the solution (1, 1)?
2x + y = 2
4x – 2y = 2
2x - 2y = 2
x+y=4

Can someone pls ! pls answer all. no explanation needed..

Angela took a general public aptitude test and scored in the 88th percentile for aptitude in accounting. what percentage of the scores were at or below her score?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)