Question

Which ordered pair is NOT a solution of the inequality, y < 3 - 2x?
A. (-1,3)
B. (-3, -10.5)
C. (0, -6)
D. (2, -3)

Answer 1

Thanks so much!

Answer 2

lets sub and find out..

y < 3 - 2x y < 3 - 2x
(-1,3)...x = -1 and y = 3 (0,-6)...x = 0 and y = -6
now sub sub
3 < 3 - 2(-1) -6 < 3 - 2(0)
3 < 3 + 2 -6 < 3 - 0
3 < 5....this is true -6 < 3....this is true

y < 3 - 2x y < 3 - 2x
(-3,-10.5)...x = -3 and y = -10.5 (2,-3)...x = 2 and y = -3
sub sub
-10.5 < 3 - 2(-3) -3 < 3 - 2(-3)
-10.5 < 3 + 6 -3 < 3 + 6
-10.5 < 9......this is true -3 < 9...this is true

they are all correct....Is the problem written correctly ?

Answer 3

No I'm sorry! It's actually
A. (-1,3)
B. (6,-7)
C. (0,4)
D.(-4, 5)