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Chapter 5 Clark

Chapter 5 flash cards

Addition Property of Inequality if a<b, then a+c<b+c
Multiplication Properties of Inequality if a<b and c>0, then ac<bc if a<b and c<0, then ac>bc
How is the solution determined looking at data? The intersection (or the same number for both domain and range) or where two lines in a graph meet.
Substitution y=3x x(3x)=48 xy=48 x=4
Consistent one or more solutions
Are parallel lines consistent? no, they never intersect so they have no solutions and known as inconsistent.
Linear Combination Ax=By
System-Determinant Theorem a 2X2 system has exactly one solution if and only if the determinant of the coefficient matrix doesn't = zero
Created by: TWenderski