Question

Which of the following is a solution to the inequality?

Answer 1

a. (0, -3)

Explanation:

Put in the inputs and outputs, and see if they come out true or false.

a.

x - 3y ≥ 4

0 - 3(-3) ≥ 4

0 + 9 ≥ 4

9 ≥ 4

True.

b.

x - 3y ≥ 4

0 - 3(5) ≥ 4

0 - 15 ≥ 4

-15 ≥ 4

False.

c.

x - 3y ≥ 4

-4 - 3(-1) ≥ 4

-4 + 3 ≥ 4

-1 ≥ 4

False.

d.

x - 3y ≥ 4

2 - 3(3) ≥ 4

2 - 9 ≥ 4

-7 ≥ 4

False.