Question

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Answer 1

Answer:  see below

Step-by-step explanation:

7) Algebraic Inequality: x ≠ 3  

   -->    -∞ < x < 3 and 3 < x < ∞

   Graph:  ←-----------o-----------→

                               3

  Interval Notation: (-∞,3) ∪ (3, ∞)

8) This is a duplicate question of #7

9) Algebraic Inequality: x ≠ 2 and x ≠ 7

    -->  -∞ < x < 2 and 2 < x < 7 and 7 < x < ∞

   Graph:  ←-------o-------o-------→

                           2        7

  Interval Notation: (-∞, 2) ∪ (2, 7) ∪ (7, ∞)

10) Algebraic Inequality: x ≠ -4 and x ≠ 0

    -->  -∞ < x < -4 and -4 < x < 0 and 0 < x < ∞

   Graph:  ←-------o-------o-------→

                          -4        0

  Interval Notation: (-∞, -4) ∪ (-4, 0) ∪ (0, ∞)