Junior Cycle Mathematics ALGEBRA - Inequalities: The table below shows the graph

Question

The table below shows the graph of each of the given inequalities.
Fill in the missing graph and the missing inequality, labelled A and B.
$x \in \mathbb{N}$ in each case.

| Inequality ($x \in \mathbb{N}$) | Graph |
| -------------------------------- | ----- |
| 1 (Example)                     | $x < 4$ |
| 2                                | $x > 2$  |
| 3                                | B.    |

A.

Ailbhe writes two inequalities in A, and graphs each one.
One inequality and one graph are shown in the table below.
Complete the table by filling in the missing inequality and graph, labelled G and H.
$A \in \mathbb{R}$ in each case.

| Inequality ($A \in \mathbb{R}$)  | Graph |
| --------------------------------- | ----- |
| 1                                 | $A \geq 13$ |
| 2                                 | H.    |

A teenage disco has the following rule about the age, A, of students:
Students must be 13 years of age or older, but less than 18.

To represent this rule, should Ailbhe take the union, the intersection, or the complement of the two sets in part (b)(ii)? Tick (✓) one box only.

- union
- intersection
- complement

The table below shows the graph of each of the given inequalities - Junior Cycle Mathematics - Question 12 - 2019

Worked Solution & Example Answer:The table below shows the graph of each of the given inequalities - Junior Cycle Mathematics - Question 12 - 2019

2. Fill in the missing inequality A.

3. Fill in the missing inequality B.

1. Complete the inequality G.

2. Complete the inequality H.

ii). What should Ailbhe choose?

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