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13 votes
Solve the inequality for x and identify the graph of its solution.

3(x + 1) < 6
Choose the answer that gives both the correct solution and the correct graph.​

Solve the inequality for x and identify the graph of its solution. 3(x + 1) < 6 Choose-example-1
User Allloush
by
3.3k points

2 Answers

1 vote

Answer:

the answer is B

hope the answer may help you

Solve the inequality for x and identify the graph of its solution. 3(x + 1) < 6 Choose-example-1
User Rocking
by
3.5k points
13 votes

To solve
\(3|x + 1| < 6\), isolate the absolute value, create two cases, and combine solutions. The correct answer is
\( -3 < x < 1\), and the appropriate choice is D.

Let's solve the inequality step by step:


\[3|x + 1| < 6\]

1. Isolate the Absolute Value:


\[ |x + 1| < 2 \]

2. Create Two Cases:

- Case one:
\(x + 1 < 2\)


\[ x < 1 \]

- Case two:
\(x + 1 > -2\)


\[ x > -3 \]

3. Combine the Solutions:

- Combine the solutions from both cases:


\[ -3 < x < 1 \]

Now, let's look at the choices:

A.
\(x < -3\) or
\(x > 1\) - Incorrect

B.
\(x > -3\) and
\(x < 1\) - Incorrect

C.
\(x < -1\) or
\(x > 3\) - Incorrect

D.
\(x > -3\) and
\(x < 1\) - Correct (it marks the interval from -
3 to
1)

So, the correct solution is
\( -3 < x < 1 \), and D marks the interval from -
3 to
1, so D is the correct choice.

User Kklw
by
3.0k points