Answer= (1,-1) and ( - 4 , 2 ) ( - 2 , 1 )
Solution:
Put in the (1,-1) where x = 1, y = -1
y−4x ≥ −5
(-1) - 4(1) ≥ −5
-5 ≥ −5 Since LHS is equal to the RHS, this is the correct answer.
The other options
(5,-2)
y−4x ≥ −5
(-2) - 4 (5) ≥ −5
-22 ≥ −5
Hence incorrect since LHS is NOT equal to RHS
(4,0)
y−4x ≥ −5
(0) - 4 (4) ≥ −5
-16 ≥ −5
Hence incorrect since LHS is NOT equal to RHS
