Math Problem Statement
Solution
From the image, it appears that there are two problems where the interval and inequality notations have been entered incorrectly. Let’s address both issues:
a) Enter in interval notation
- The correct interval notation for the expression is:
Where:
- The square bracket "[" means 3 is included in the interval.
- The parenthesis ")" after ∞ means the interval goes infinitely and does not include infinity (as infinity is not a real number that can be included).
Mistake in your answer:
You entered: This is inequality notation, not interval notation. To express this in correct interval notation, write .
b) Enter in inequality notation
- The correct inequality notation for the interval is:
Where:
- The inequality "2 < x" indicates that is strictly greater than 2 (not including 2).
- The inequality "" means is less than or equal to 7 (7 is included).
Mistake in your answer:
You entered: This is interval notation. To express this in correct inequality notation, use .
Would you like more details or have any questions? Here are some related questions for further practice:
- What is the interval notation for ?
- How do you express the interval in inequality form?
- What is the inequality notation for ?
- How do you write in interval notation?
- Convert the interval notation into an inequality.
Tip: Interval notation uses brackets to show whether endpoints are included or excluded, whereas inequality notation uses comparison symbols like , , , and .
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Math Problem Analysis
Mathematical Concepts
Inequality Notation
Interval Notation
Real Number Line
Formulas
Interval Notation: (a, b), [a, b], (a, ∞), (-∞, b]
Inequality Notation: a < x ≤ b
Theorems
None
Suitable Grade Level
Grades 6-8