Which ordered pair is NOT a solution of the inequality?

Question

9>=4x-5

a (3, 0)

b (1, 2)

c (1, 1)

d (2, 3)

>= means Less then or Greater than

Answer 1

12-5 = 7

4-5 = -1

8-5 = 3

9 is greater than any of the alternatives 9>7, 9>-1, 9>3

None of the alternatives are >9

plug in the x coordinate of each of the ordered pairs into the inequality. They all work.

9>4x-5

4x-5>9

4x > 9+5

4x > 14

x > 14/4 = 7/2 = 3.5

You need an ordered pair with the x coordinate > or = 3 1/2