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Two-variable inequalities

This course contains 4 segments:

Checking solutions of two-variable inequalities

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This course contains 4 segments:

Checking solutions of two-variable inequalities

Learn how to check possible solutions of two-variable linear inequalities. For example, is (2, 0) a solution to y>x+1? In this tutorial, we also check solutions to systems of inequalities.

Constraining solutions of two-variable inequalities

Given a specific value for one of the variables in a two-variable linear inequality (or system of inequalities), learn how to find the corresponding range of values for the other variable. For example, given that x=3, what are the possible values for y in 2x+y<1 ?

Graphing two-variable inequalities

Learn how to graph two-variables linear inequalities and systems of two-variable linear inequalities.

Modeling with linear inequalities

Learn how to construct linear inequalities and systems of inequalities given a real-life context. Learn how to interpret such inequalities in terms of a real-life context, either algebraically or graphically.

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Time
2 hours
Via
Khan Academy
This course belongs to a collection called Algebra (all content). It's comprised of 20 courses:
  1. Introduction to algebra
  2. Solving basic equations & inequalities (one variable, linear)
  3. Linear equations, functions, & graphs
  4. Sequences
  5. System of equations
  6. Two-variable inequalities (viewing)
  7. Functions
  8. Absolute value equations, functions, & inequalities
  9. Quadratic equations & functions
  10. Polynomial expressions, equations, & functions
  11. Exponential & logarithmic functions
  12. Radical equations & functions
  13. Rational expressions, equations, & functions
  14. Trigonometric functions
  15. Algebraic modeling
  16. Complex numbers
  17. Series & induction
  18. Conic sections
  19. Vectors
  20. Matrices
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