Question

Is (-1,2) a solution of the system y > x and x + y > 0

Answer 1

Answer:

Step-by-step explanation:

for it to be a solution, it has to satisfy both inequalities....not just one

y > x.......(-1,2)....x = -1 and y = 2....now we sub

2 > -1.....2 is greater then -1......this is true

x + y > 0....(-1,2)...x = -1 and y = 2.....sub

-1 + 2 > 0

1 > 0......1 is greater then 0....this is true

so (-1,2) IS a solution to this system because it satisfies both inequalities