8 2. Plot the solution sets of questions 1(b), (i), (l) and ( t) on the number line.
3. (a) Find the solution set of 4x − 15 < 1, x ∈ N. (b) Find the solution set of 2(3 − x) < x + 15, x ∈ Z. (c) Find the solution set of 2x + 1 ≥ − 8, x ∈ Z.
(d) Find A, the solution set of x + 3 > 2x − 9, x ∈ N. Find B, the solution set of 2(x − 3) ≥ x + 1, x ∈ N. List the elements A ∩ B.
(e) Find A, the solution set of x − 2 ≥ 2x − 6, x ∈ N. Find B, the solution set of x − 1 _____
List the elements B / A. List the elements P / Q. 2
(f) Find P, the solution set of x + 2 < 2x + 7, x ∈ Z. Find Q, the solution set of x + 7 _____
