Math Problem Statement

Rewrite the set I by listing its elements. Make sure to use the appropriate set notation. I={y |y is an integer and <−5<y−3}

Solution

The given set I={yy is an integer and 5<y3}I = \{ y \mid y \text{ is an integer and } -5 < y - 3 \} can be rewritten by solving the inequality for yy.

Starting with the inequality: 5<y3-5 < y - 3 Add 3 to both sides: 5+3<y2<y-5 + 3 < y \quad \Rightarrow \quad -2 < y

This means yy must be an integer greater than 2-2. Therefore, the set II includes all integers greater than 2-2, which can be written as: I={1,0,1,2,3,4,}I = \{ -1, 0, 1, 2, 3, 4, \dots \}

This is the set of all integers starting from 1-1 and increasing without bound.

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Here are five related questions:

  1. How do you solve inequalities involving absolute values?
  2. How would the set change if y35y - 3 \leq -5?
  3. What happens if you add a condition like y<10y < 10?
  4. Can you list the elements of the set {y2y5}\{ y \mid -2 \leq y \leq 5 \}?
  5. How do you represent an infinite set on a number line?

Tip: When solving inequalities, always remember to reverse the inequality sign if you multiply or divide by a negative number!

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Math Problem Analysis

Mathematical Concepts

Inequalities
Set Notation
Integer Numbers

Formulas

-5 < y - 3
Additive Property of Inequalities

Theorems

Basic Inequality Theorems

Suitable Grade Level

Grades 6-8