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What happens when solving the inequality [tex]$|w+4|\ \textgreater \ 6$[/tex]?

Our inequality [tex]$|w+4|\ \textgreater \ 6$[/tex] has the form [tex]$|A|\ \textgreater \ C$[/tex]. According to the rules, this is equivalent to the following:

[tex]\[
w+4\ \textless \ -6 \quad \text{or} \quad w+4\ \textgreater \ 6
\][/tex]

We solve for [tex]\(w\)[/tex] as follows:

[tex]\[
\begin{array}{rl}
w+4-4\ \textless \ -6-4 & \quad \text{or} \quad w+4-4\ \textgreater \ 6-4 \\
w\ \textless \ -10 & \quad \text{or} \quad w\ \textgreater \ 2
\end{array}
\][/tex]

Graphing this solution on the number line, we get our answer.


Sagot :

It sounds like you're working through an absolute value inequality problem. Let's break it down clearly and solve it step-by-step.

The inequality given is:

[tex]\[ |w + 4| > 6 \][/tex]

To solve this, we need to consider the definition of absolute values. For an inequality of the form [tex]\( |A| > C \)[/tex], where [tex]\( A \)[/tex] and [tex]\( C \)[/tex] are expressions, it implies:

[tex]\[ A < -C \quad \text{or} \quad A > C \][/tex]

Applying this to our specific problem:

[tex]\[ |w + 4| > 6 \][/tex]

we get:

[tex]\[ w + 4 < -6 \quad \text{or} \quad w + 4 > 6 \][/tex]

Now, let's solve each inequality separately:

### Solving [tex]\( w + 4 < -6 \)[/tex]

[tex]\[ w + 4 < -6 \][/tex]

Subtract 4 from both sides:

[tex]\[ w < -6 - 4 \][/tex]

[tex]\[ w < -10 \][/tex]

### Solving [tex]\( w + 4 > 6 \)[/tex]

[tex]\[ w + 4 > 6 \][/tex]

Subtract 4 from both sides:

[tex]\[ w > 6 - 4 \][/tex]

[tex]\[ w > 2 \][/tex]

### Combining the Solutions

The solutions to the original inequality [tex]\( |w + 4| > 6 \)[/tex] are:

[tex]\[ w < -10 \quad \text{or} \quad w > 2 \][/tex]

### Graphical Representation

On the number line, this can be represented as:

[tex]\[ \begin{array}{ccccccccc} \cdots & -11 & \bullet & -10 & \cdots & 2 & \bullet & 3 & \cdots \\ \end{array} \][/tex]

The filled bullets indicate the boundaries (-10 and 2) are not included in the solution set since the inequality is strict ([tex]\( > \)[/tex], not [tex]\( \geq \)[/tex]).

The solution essentially says that [tex]\( w \)[/tex] can be any value less than -10 or any value greater than 2.

Hence, the final answer is:

[tex]\[ w < -10 \quad \text{or} \quad w > 2 \][/tex]