Question
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\( 1 \leftarrow \) Other than a no solution set, use interval notation to express the solution set and then graph the solution set on a number line. \[ 2 x+4>10 \] Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The solution set is B. The solution set is \( \varnothing \). (Type your answef using interval notation.)

Ask by Peterson Kirk. in the United States
Feb 26,2025

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Tutor-Verified Answer

Answer

The solution set is (3, ∞).

Solution

Step 1: Solve the inequality.   2x + 4 > 10 Subtract 4 from both sides:   2x > 6 Divide both sides by 2:   x > 3 Step 2: Express the solution in interval notation. Since x > 3, the solution set in interval notation is:   (3, ∞) Step 3: Graph the solution on a number line.   • Draw a number line.   • Place an open circle at 3 to indicate that 3 is not included in the solution.   • Shade or draw an arrow to the right of 3 to show that all numbers greater than 3 are included. The correct choice is:   A. The solution set is (3, ∞).

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To solve the inequality \( 2x + 4 > 10 \), we start by isolating \( x \). Subtract 4 from both sides: \[ 2x > 6. \] Next, divide both sides by 2: \[ x > 3. \] Therefore, in interval notation, the solution set is \( (3, \infty) \). On a number line, you would graph this by drawing an open circle at 3 (indicating that 3 is not included in the solution) and shading all the area to the right towards infinity. ___ If you’re curious about the implications of inequalities, this particular solution indicates all values greater than 3. For example, if \( x = 4 \), it satisfies the inequality since \( 2(4) + 4 = 12 > 10 \). So in practical situations, you can use this type of solution when determining acceptable values, like in optimization problems where certain limits need to be exceeded, such as budget thresholds or statistical benchmarks!

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