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Find the set of the solutions for each of the following Absolute Value Inequalities.

A. |1 - 3/4k| ≥ 7: k ≥ 4/3
B. |1 - 3/4k| ≥ 7: k ≤ -4/3
C. |1 - 3/4k| ≥ 7: k ≥ -4/3
D. |1 - 3/4k| ≥ 7: k ≤ 4/3

1 Answer

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Final answer:

To solve the absolute value inequality |1 - (3/4)k| ≥ 7, we isolate the absolute value expression and consider two cases: one where the expression inside the absolute value is positive and one where it is negative.

Step-by-step explanation:

To solve the absolute value inequality |1 - (3/4)k| ≥ 7, we need to isolate the absolute value expression and consider two cases: one where the expression inside the absolute value is positive and one where it is negative.

  1. If 1 - (3/4)k ≥ 0, we can remove the absolute value signs and solve for k:
  • 1 - (3/4)k ≥ 7
  • - (3/4)k ≥ 6
  • k ≤ -8
If 1 - (3/4)k < 0, we need to change the direction of the inequality when removing the absolute value signs:
  • -(1 - (3/4)k) ≥ 7
  • -(1 - (3/4)k) ≥ 7
  • k ≥ 4/3

Therefore, the solutions for the absolute value inequality are:

k ≤ -8 or k ≥ 4/3.

User Dominic Eidson
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