Testing Solutions of Inequalities

The symbol < means:

• less than

• greater than

• less than or equal to

• greater than or equal to

• equal to

Are the points on the boundary line part of the solution set or not?

• Yes, they are part of the solution set

• No, they are NOT part of the solution set

Solve for y:

10X + 2y ≤ 14

• y ≤ -5x + 7

• y ≥-5x +7

Solve for y:

2x − 2y < 18

• y > -x + 9

• y > x − 9

Solve for y:

3x + 2y < 0

• y < -3/2 x

• y < 3/2 x

Solve for y:

x + 5y ≤ 10

• y ≤ -1/5x + 2

• y ≤ -5x +2

Solve for y:

x - y ≤3

• y ≥ x − 3

• y ≤ x − 3

Solve for y:

-y − 3x ≥ 1

• y ≤ -3x − 1

• y ≥ -3x − 1

Which ordered pair is NOT a solution to the system of inequalities?