IF THE ORDERED PAIRS SATISFY THE INEQUALITY WORKSHEET

Is each ordered pair a solution of the inequality ?

Problem 1 :

y – x > 5 ; (3, -2), (4, 1)

Problem 2 :

x + y < -3 ; (-1, -5), (0, 0)

Problem 3 :

Identify,

i) 3 ordered pairs that are solutions to the inequalities

ii) Write the inequality that represents the graph given.

Problem 4 :

Identify,

i) 3 ordered pairs that are solutions to the inequalities

ii) Write the inequality that represents the graph given.

Solution :

By observing the figure,

The 3 ordered pairs is (0, 4) (2, -2) and (1, 1).

The graph shows the inequality is 3x + y ≥ 4

Answer Key

1) (3, -2) is a solution and (4, 1) is not a solution.

2) (-1, -5) is a solution and (0, 0) is not a solution.

3) (0, 0) (0, 1) and (1, 1) (we can find many options)

Inequality represented by the graph :

y > 4

4) (0, 4) (2, -2) and (1, 1) (we can find many options)

Inequality represented by the graph :

3x + y ≥ 4