Questions: Which of the following is equivalent to x-1<5 ?
x-1<5
5<x-1<5
-5<x-1<5
-5>x-1<5
Transcript text: Which of the following is equivalent to $|x-1|<5$ ?
$x-1<5$
$5x-1<5$
Solution
Solution Steps
To solve the absolute value inequality \( |x-1| < 5 \), we need to rewrite it as a compound inequality. The absolute value inequality \( |A| < B \) can be rewritten as \( -B < A < B \).
Solution Approach
Recognize that \( |x-1| < 5 \) can be rewritten as a compound inequality.
Apply the rule \( -B < A < B \) where \( A = x-1 \) and \( B = 5 \).
This results in \( -5 < x-1 < 5 \).
Step 1: Rewrite the Absolute Value Inequality
We start with the absolute value inequality:
\[
|x-1| < 5
\]
Step 2: Apply the Definition of Absolute Value
The definition of absolute value states that \( |A| < B \) can be rewritten as:
\[
-B < A < B
\]
In our case, \( A = x-1 \) and \( B = 5 \). Therefore, we can rewrite the inequality as:
\[
-5 < x-1 < 5
\]
Step 3: Solve the Compound Inequality
Now, we can solve the compound inequality by isolating \( x \):
From the left side:
\[
-5 < x - 1 \implies -5 + 1 < x \implies -4 < x
\]
From the right side:
\[
x - 1 < 5 \implies x < 5 + 1 \implies x < 6
\]
Combining these results, we have:
\[
-4 < x < 6
\]
Final Answer
The solution to the inequality \( |x-1| < 5 \) is: