Question
upstudy study bank question image url

Solve and write interval notation for the solution set. Then graph the solution set. \[ 2 x+5 \leq-6 \text { or } 2 x+5 \geq 6 \]

Ask by Gordon Santiago. in the United States
Feb 20,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

The solution set is all real numbers less than or equal to \(-\frac{11}{2}\) or greater than or equal to \(\frac{1}{2}\). In interval notation, this is \((-\infty, -\frac{11}{2}] \cup [\frac{1}{2}, \infty)\).

Solution

To solve the compound inequality \( 2x + 5 \leq -6 \) or \( 2x + 5 \geq 6 \), we will solve each inequality separately. ### Step 1: Solve the first inequality 1. Start with the inequality: \[ 2x + 5 \leq -6 \] 2. Subtract 5 from both sides: \[ 2x \leq -6 - 5 \] \[ 2x \leq -11 \] 3. Divide both sides by 2: \[ x \leq -\frac{11}{2} \] ### Step 2: Solve the second inequality 1. Start with the inequality: \[ 2x + 5 \geq 6 \] 2. Subtract 5 from both sides: \[ 2x \geq 6 - 5 \] \[ 2x \geq 1 \] 3. Divide both sides by 2: \[ x \geq \frac{1}{2} \] ### Step 3: Combine the solutions The solution set consists of two parts: - From the first inequality: \( x \leq -\frac{11}{2} \) - From the second inequality: \( x \geq \frac{1}{2} \) ### Step 4: Write in interval notation The solution set in interval notation is: \[ (-\infty, -\frac{11}{2}] \cup [\frac{1}{2}, \infty) \] ### Step 5: Graph the solution set To graph the solution set, we will represent the intervals on a number line. 1. Draw a number line. 2. Shade the region to the left of \(-\frac{11}{2}\) and include the endpoint (closed circle). 3. Shade the region to the right of \(\frac{1}{2}\) and include the endpoint (closed circle). Now, let's graph the solution set. ### Graphing the solution set The graph will show two shaded regions, one extending to the left from \(-\frac{11}{2}\) and the other extending to the right from \(\frac{1}{2}\). I will now provide the graph. (Note: As a text-based AI, I cannot create visual graphs directly, but you can visualize it based on the description above.)

Answered by UpStudy AI and reviewed by a Professional Tutor

error msg
Explain
Simplify this solution

The Deep Dive

To solve the compound inequality \( 2x + 5 \leq -6 \) and \( 2x + 5 \geq 6 \), we’ll tackle each part separately. 1. For \( 2x + 5 \leq -6 \): \[ 2x \leq -6 - 5 \\ 2x \leq -11 \\ x \leq -\frac{11}{2} \\ x \leq -5.5 \] 2. For \( 2x + 5 \geq 6 \): \[ 2x \geq 6 - 5 \\ 2x \geq 1 \\ x \geq \frac{1}{2} \] Now we combine the solutions: \[ x \leq -5.5 \quad \text{or} \quad x \geq 0.5 \] In interval notation, the solution set is: \[ (-\infty, -5.5] \cup [0.5, \infty) \] Now, let's graph the solution set: - On a number line, we would shade to the left starting from -5.5 excluding any values before it (and include -5.5 with a closed dot). - We would also shade to the right starting from 0.5 including 0.5 (with a closed dot) and extending infinitely in that direction. This visually represents all the values of \( x \) that satisfy the original inequalities.

Related Questions

Latest Algebra Questions

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy