Section 4.4 Inequalities in Two Variables

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Learning Target Students will be able to: Graph and solve linear inequalities in two variables.

Presentation transcript:

Section 4.4 Inequalities in Two Variables Graphs of Linear Inequalities x + y ≤ 4 Systems of Linear Inequalities x – y < 4 4.4

Checking Solutions 4.4

(3,1) 4.4

4.4

Slope-Intercept Form Predicts Shading 4.4

ABOVE BELOW y > mx + b y < mx + b 4.4

Horizontal & Vertical Lines 4.4

Systems of Two Linear Inequalities Graph the first one, shading the solution Graph the second, shading in a different way Highlight the double-shaded areas 4.4

(not a 3-D graph) Systems of Three Linear Inequalities Graph all three, looking for the common area 4.4

Next Section 5.1 Introduction to Polynomials & Polynomial Functions 4.4