Huang Bush
07/05/2023 · Junior High School
Convert each of the following sentences into an absolute value inequality (a) All real numbers \( x \) less than 4 units from 8 . (b) All real numbers \( x \) more than 7 units from 0 . (c) All real numbers \( x \) at least 9 units from 7 . (d) All real numbers \( x \) at most 4 units from 3 .
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Step-by-step Solution
To convert each of the given sentences into absolute value inequalities, we can use the definition of absolute value, which states that the absolute value of a number represents its distance from zero on the number line.
Here are the conversions for each sentence:
(a) All real numbers \( x \) less than 4 units from 8:
\[
|x - 8| < 4
\]
(b) All real numbers \( x \) more than 7 units from 0:
\[
|x| > 7
\]
(c) All real numbers \( x \) at least 9 units from 7:
\[
|x - 7| \geq 9
\]
(d) All real numbers \( x \) at most 4 units from 3:
\[
|x - 3| \leq 4
\]
These inequalities represent the conditions described in each sentence.
Quick Answer
(a) \( |x - 8| < 4 \)
(b) \( |x| > 7 \)
(c) \( |x - 7| \geq 9 \)
(d) \( |x - 3| \leq 4 \)
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