Finding the Intersection of the Two Solution Sets

Oct 13, 2025 by wbrum.org 60 views

Introduction

In mathematics, solving inequalities is a crucial concept that helps us understand the relationship between variables and their values. In this article, we will explore the solution set of two given inequalities, $x+2 \geq 6$ and $3x \geq 6$ . We will break down each inequality, solve for the variable, and then find the intersection of the two solution sets.

Solving the First Inequality: $x+2 \geq 6$

To solve the inequality $x+2 \geq 6$ , we need to isolate the variable $x$ . We can do this by subtracting $2$ from both sides of the inequality.

x + 2 \geq 6
x + 2 - 2 \geq 6 - 2
x \geq 4

This tells us that the solution set for the first inequality is all values of $x$ that are greater than or equal to $4$ . We can represent this as an interval on the number line, where $x$ is greater than or equal to $4$ .

Solving the Second Inequality: $3x \geq 6$

To solve the inequality $3x \geq 6$ , we need to isolate the variable $x$ . We can do this by dividing both sides of the inequality by $3$ .

3x \geq 6
\frac{3x}{3} \geq \frac{6}{3}
x \geq 2

This tells us that the solution set for the second inequality is all values of $x$ that are greater than or equal to $2$ . We can represent this as an interval on the number line, where $x$ is greater than or equal to $2$ .

Finding the Intersection of the Two Solution Sets

Now that we have found the solution sets for both inequalities, we need to find the intersection of the two sets. The intersection of two sets is the set of elements that are common to both sets.

In this case, the solution set for the first inequality is all values of $x$ that are greater than or equal to $4$ , and the solution set for the second inequality is all values of $x$ that are greater than or equal to $2$ . To find the intersection of the two sets, we need to find the values of $x$ that satisfy both inequalities.

x \geq 4 \text{ and } x \geq 2
x \geq 4

This tells us that the intersection of the two solution sets is all values of $x$ that are greater than or equal to $4$ . We can represent this as an interval on the number line, where $x$ is greater than or equal to $4$ .

Conclusion

In this article, we have explored the solution set of two given inequalities, $x+2 \geq 6$ and $3x \geq 6$ . We have broken down each inequality, solved for the variable, and then found the intersection of the two solution sets. The solution set of the two inequalities is all values of $x$ that are greater than or equal to $4$ .

Final Answer

The final answer is $\boxed{[4, \infty)}$ .

References

[1] "Inequalities" by Khan Academy
[2] "Solving Inequalities" by Math Open Reference

Introduction

In our previous article, we explored the solution set of two given inequalities, $x+2 \geq 6$ and $3x \geq 6$ . We broke down each inequality, solved for the variable, and then found the intersection of the two solution sets. In this article, we will answer some frequently asked questions (FAQs) about the solution set of these inequalities.

Q: What is the solution set of $x+2 \geq 6$ ?

A: The solution set of $x+2 \geq 6$ is all values of $x$ that are greater than or equal to $4$ . We can represent this as an interval on the number line, where $x$ is greater than or equal to $4$ .

Q: What is the solution set of $3x \geq 6$ ?

A: The solution set of $3x \geq 6$ is all values of $x$ that are greater than or equal to $2$ . We can represent this as an interval on the number line, where $x$ is greater than or equal to $2$ .

Q: How do I find the intersection of the two solution sets?

A: To find the intersection of the two solution sets, we need to find the values of $x$ that satisfy both inequalities. In this case, the intersection of the two solution sets is all values of $x$ that are greater than or equal to $4$ .

Q: What is the final answer to the problem?

A: The final answer to the problem is $\boxed{[4, \infty)}$ .

Q: Can I use a graph to visualize the solution set?

A: Yes, you can use a graph to visualize the solution set. The solution set is represented by the interval $[4, \infty)$ on the number line.

Q: How do I know if the solution set is an interval or a single value?

A: If the inequality is of the form $x \geq a$ , then the solution set is an interval of the form $[a, \infty)$ . If the inequality is of the form $x = a$ , then the solution set is a single value, $a$ .

Q: Can I use the solution set to solve other problems?

A: Yes, you can use the solution set to solve other problems. For example, if you are given an inequality of the form $x+2 \geq 6$ and you know that the solution set is $[4, \infty)$ , then you can use this information to solve other inequalities that involve the variable $x$ .

Q: How do I find the solution set of a system of inequalities?

A: To find the solution set of a system of inequalities, you need to find the intersection of the solution sets of each inequality. This can be done by solving each inequality separately and then finding the intersection of the solution sets.

Q: Can I use technology to help me solve inequalities?

A: Yes, you can use technology to help you solve inequalities. Many graphing calculators and computer algebra systems can be used to solve inequalities and find the solution set.

Conclusion

In this article, we have answered some frequently asked questions (FAQs) about the solution set of $x+2 \geq 6$ and $3x \geq 6$ . We have provided explanations and examples to help you understand the solution set and how to use it to solve other problems.

Final Answer

The final answer is $\boxed{[4, \infty)}$ .

References

[1] "Inequalities" by Khan Academy
[2] "Solving Inequalities" by Math Open Reference