Math Problem Statement
Solve and graph the following inequality: 2x + 5 > 11.
Solution
Let's solve the inequality step by step:
Inequality:
Step 1: Isolate by subtracting 5 from both sides:
Step 2: Solve for by dividing both sides by 2:
Solution:
The solution to the inequality is .
Graphing the solution:
- The graph should have an open circle at (because it is strictly greater than 3, not greater than or equal to).
- The arrow should point to the right, indicating values greater than 3.
Conclusion:
The correct graph should have an open circle at and the line should extend to the right, showing that all values greater than 3 satisfy the inequality.
Looking at the graphs in the image:
- The correct graph is the second one on the right (showing an open circle at 3 and the line pointing to the right).
Would you like more details or have any questions?
Here are 5 related questions for practice:
- How would the solution change if the inequality were ?
- What happens if you change the inequality to ?
- Can you explain the meaning of an open versus a closed circle on the graph?
- How would you solve ?
- How do you graph an inequality like ?
Tip: Always remember to reverse the inequality sign if you multiply or divide by a negative number when solving inequalities!
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Math Problem Analysis
Mathematical Concepts
Inequalities
Algebra
Linear Equations
Formulas
2x + 5 > 11
x > (11 - 5) / 2
Theorems
Properties of inequalities
Isolating variables in inequalities
Suitable Grade Level
Grades 6-8