3.1 solve linear systems by graphing
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3.1 Solve Linear Systems by Graphing. Vocabulary. System of two linear equations : consists of two equations that can be written in standard or slope intercept form. Solution to a system of equations : ordered pair form, ( x,y ) , which satisfies both equations. - PowerPoint PPT Presentation
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3.1 Solve Linear Systems by Graphing
Vocabulary
• System of two linear equations: consists of two equations that can be written in standard or slope intercept form.
• Solution to a system of equations: ordered pair form, (x,y) , which satisfies both equations.
• Solution can be find when graphing two equations by finding the point the lines intersect.
Systems of Inequalities have 3 types of Solutions:
• 1) one solution: lines intersect• 2) no solution: lines do not intersect• 3) infinitely many solutions: same line
Example:
• (EX 1) Graph the linear system and estimate the solution. Then check the solution algebraically.
4x + y = 8 2x – 3y = 18
Practice Problems:
• Page 153 (1-3)
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