Lemma
EasySystems
OpenStax, Algebra and Trigonometry 2e §11.3 Systems of Nonlinear Equations and Inequalities: Two Variables · Exercise 5 · Algebra · Systems

Systems of Nonlinear Equations and Inequalities: Two Variables · Exercise 5

When graphing an inequality, explain why we only need to test one point to determine whether an entire region is the solution?

Its source prints no answer for this problem, so there's nothing to check against.

~5 minWritten answer · check your work with Lemma

OpenStax, Algebra and Trigonometry 2e · §11.3 Systems of Nonlinear Equations and Inequalities: Two Variables · Exercise 5

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
Your working

Check your full solution

Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.

Your first check today doesn't need an account.

Your photos and PDFs are read once and not stored — only the transcription is kept.