What does the set \{x | x > -4\} represent?Choices:(A)all numbers less than −4(B)all numbers greater than −4(C)all numbers greater than or equal to −4(D)all numbers less than or equal to−4
Q. What does the set {x∣x>−4} represent?Choices:(A)all numbers less than −4(B)all numbers greater than −4(C)all numbers greater than or equal to −4(D)all numbers less than or equal to −4
Set Notation Explanation: The set notation {x | x > -4} is read as "the set of all x such that x is greater than −4." This means we are looking at all the numbers on the number line that are to the right of −4, not including −4 itself.
Comparison with Choices: To determine which choice correctly describes the set, we compare the description in the set notation to the descriptions given in the choices. The set notation specifies "greater than −4," which means we are looking for a choice that includes all numbers that are to the right of −4 on the number line.
Choice (A) Analysis: Choice (A) says "all numbers less than −4," which would be to the left of −4 on the number line, so this is not correct.
Choice (B) Analysis: Choice (B) says "all numbers greater than −4," which matches the description in the set notation, indicating all numbers to the right of −4 on the number line. This seems to be the correct choice.
Choice (C) Analysis: Choice (C) says "all numbers greater than or equal to −4," which is not correct because the set notation does not include −4 itself; it only includes numbers strictly greater than −4.
Choice (D) Analysis: Choice (D) says "all numbers less than or equal to −4," which is the opposite of what the set notation describes, so this is not correct.
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