Finding Two Points in a Convex Set: Help Needed!

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SUMMARY

The discussion centers on finding two points within the convex set defined by the inequalities {(x1, x2): 1≤ ∣x1∣ ≤2, ∣x2−3∣ ≤ 2} such that the line segment connecting them lies outside the set. The user graphed the function but struggled to identify the correct points. A key insight is that before graphing, one must solve the inequalities to confirm the set's convexity, which the user later acknowledged as resolved.

PREREQUISITES
  • Understanding of convex sets and their properties
  • Proficiency in solving inequalities
  • Graphing functions in a Cartesian coordinate system
  • Familiarity with line segments and their geometric implications
NEXT STEPS
  • Study the properties of convex sets in detail
  • Learn techniques for solving multi-variable inequalities
  • Explore graphical methods for visualizing convex sets
  • Investigate examples of line segments in convex and non-convex sets
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Mathematicians, students studying geometry or optimization, and anyone interested in the properties of convex sets and their applications in various fields.

reefster98
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I have two a convex set:

{(x1, x2): 1≤ ∣x1∣ ≤2, ∣x2−3∣ ≤ 2}

I have to find two points in the set for which the line segment joining the points goes outside the set. I have graphed the function and found my convex set. My question is, how do I find these two points? I have found various points in which the answer is still incorrect.

Please help me. Thank you in advanced.
 
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reefster98 said:
I have two a convex set:

{(x1, x2): 1≤ ∣x1∣ ≤2, ∣x2−3∣ ≤ 2}

I have to find two points in the set for which the line segment joining the points goes outside the set. I have graphed the function and found my convex set. My question is, how do I find these two points? I have found various points in which the answer is still incorrect.

Please help me. Thank you in advanced.
Is that set convex? Before you graph it, you need to solve those inequalities.
 
Thank you, I got the answer to that question.
 

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