3.3 a writing a systems of inequalities 3.3 a solving systems of inequalities 3.3 solving systems of inequalities 3.2 a solving systems algebraically 3.2 solving systems algebraically 3.1 a solving systems graphically 3.1 b solving systems graphically 3.1 solving systems graphically 2.8 b absolute value functions 2.8 a absolute value functions 2.8 absolute value functions 2.5 a correlation & best fitting lines 2.6 graphing linear inequalities 
