Math Problem Statement

Given the system of inequalities: y greater than 2x+6 and y less than -3x-4 is (-3,-3) a solution to this system

Solution

We are given the system of inequalities:

y>2x+6y > 2x + 6

y<3x4y < -3x - 4

We need to check whether the point (3,3)(-3, -3) satisfies both inequalities.

Step 1: Substitute (3,3)(-3, -3) into the first inequality

3>2(3)+6-3 > 2(-3) + 6 3>6+6-3 > -6 + 6 3>0-3 > 0

This is false.

Step 2: Substitute (3,3)(-3, -3) into the second inequality

3<3(3)4-3 < -3(-3) - 4 3<94-3 < 9 - 4 3<5-3 < 5

This is true, but since the point must satisfy both inequalities and it fails the first one, (3,3)(-3,-3) is not a solution to the system.

Would you like a graph or further explanation?

Related Questions:

  1. How do you determine if a point is a solution to a system of inequalities?
  2. What is the graphical representation of this system of inequalities?
  3. How do you find the intersection region of two linear inequalities?
  4. What are real-world applications of systems of inequalities?
  5. How do you determine the feasible region for optimization problems?

Tip:

When checking whether a point satisfies a system of inequalities, always evaluate each inequality separately—all must be true for the point to be a solution.

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Math Problem Analysis

Mathematical Concepts

Algebra
Systems of Inequalities
Graphing Linear Inequalities

Formulas

y > 2x + 6
y < -3x - 4

Theorems

Concept of Solution to a System of Inequalities

Suitable Grade Level

Grades 8-10