GED Practice

GED Math Review: Undefined Expressions


Questions:
Directions: Choose or write the answer to each question.

  1. Which of the following is all the values of x for which is undefined?
    • x = 0
    • x = 2
    • x = -2 , x = 0, or x = 2
    • x = -2 or x = 2

  2. Which of the following is all values of x for which is undefined?
    • x < 0
    • x = -5 or x = 5
    • -5 < x < 5
    • x > 5 or x < -5
  3. Which of the following is undefined when x = -4

  4. Which of the following is undefined for all values of x such that x < 3?

  5. Which of the following is undefined for all values of x such ≥ 2?

  6. Which of the following is all the values of x for which is undefined?
    • x = -4 or x = 4
    • x < 0
    • -4 ≤ x ≤ -4
    • x ≥ 4 or ≤ -4

      For questions 7 and 8, three choices for values of x are given. In the box beside each expression, write the choice for which each expressions is undefined.
  7. A. x = -2
    B. x = -2 or x = 0
    C. x = 2

  8. A. x < 6
    B. x > 6 or x < -6
    C. -6 < x < 6

Answer:

  1. x = -2 or x = 2
  2. x > 5 or x < -5
  3. C
  4. A
  5. B
  6. x ≥ 4 or ≤ -4
  7. I (x = -2 or x = 0)
    II x = -2
    III x = 2
  8. I -6 < x < 6
    II x < 6
    III x > 6 or x < -6




Reference:


Complete Test Preparation for the GED Test 2014 by Steck-Vaughn