Grade 9 Math: Interval Notation
Worksheet for Grade 9 students covering interval notation, including writing, graphing, and interpreting intervals.
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Grade 9 Math: Interval Notation
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Read each question carefully and follow the instructions to write or graph the intervals.
Write the interval notation for each inequality.
1. x > 5:
2. x ≤ -2:
3. 3 < x ≤ 7:
4. x < 0 or x ≥ 4:
Graph each interval on the number line provided.
1. [-3, 2)
2. (-∞, 0]
1. Which interval notation represents the set of all real numbers greater than or equal to -4?
(-4, ∞)
[-4, ∞)
( -∞, -4)
(-∞, -4]
2. The interval (1, 5] represents which inequality?
1 < x < 5
1 ≤ x ≤ 5
1 < x ≤ 5
1 ≤ x < 5
Determine if the following statements are true or false.
1. The interval [ -∞, 3 ] is a valid interval notation.
True
False
2. The interval (2, 7) includes the numbers 2 and 7.
True
False
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