Question

Which one of the following is a solution of the system?
y <-1 and y > 8
A. (6, 9)
B. (-2, 4)
C. (0, 0)
D. No Solution

Answer 1

rewrite it as
8 < y < -1

8 < 6 <-1 false
8 < 9 <-1 false
8 < -2 < -1 false
8 < 4 <-1 false
8 < 0 <-1 false

therefore no solution...

y cannot be less than -1 and greater than 8 at the same time.