Math Problem Statement

Choose the correct elements in the set for the following: {y : y is an integer and y ≥ -1}.

Solution

The question asks you to choose the correct elements in the set described as:

{y:y is an integer and y1}\{ y : y \text{ is an integer and } y \geq -1 \}

This set includes all integers yy such that y1y \geq -1. Let's analyze the possible options:

  • {3,4,5,6,}\{3, 4, 5, 6, \dots\}: This set starts from 3, so it is not correct since y1y \geq -1 includes smaller integers like 1,0,1,2-1, 0, 1, 2.

  • {2,3,4,5,6,}\{2, 3, 4, 5, 6, \dots\}: This set starts from 2, which excludes numbers like 1-1 and 00, so it's also incorrect.

  • {1,0,1,2,3,}\{-1, 0, 1, 2, 3, \dots\}: This set starts from 1-1 and includes all integers greater than or equal to 1-1, which matches the given set. This is the correct answer.

  • {0,1,2,3,}\{0, 1, 2, 3, \dots\}: This set starts from 0, so it misses the number 1-1, making it incorrect.

Thus, the correct answer is:

{1,0,1,2,3,}\{-1, 0, 1, 2, 3, \dots\}

Would you like more details on this explanation? Here are five related questions to explore:

  1. What is the difference between roster form and set-builder notation?
  2. How do you determine the correct set given a set-builder notation?
  3. What other sets could be defined by conditions on integers like y0y \geq 0?
  4. How would the set change if the condition were y3y \leq 3?
  5. Can a set in roster form always be written in set-builder notation?

Tip: When working with sets, always check the smallest and largest possible values that satisfy the condition.

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Math Problem Analysis

Mathematical Concepts

Set Theory
Inequalities
Integers

Formulas

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Theorems

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Suitable Grade Level

Grades 6-8