A linear equation in two variables has infinitely many solutions. • The graph of every linear equation in two variables is a straight line. • The graph of x = a is a straight line parallel to ...

Chapter 3 - Pair of Linear Equations in Two Variables Linear equation in one variable: ax +b =0, a≠0 and a&b are real numbers Linear equation in two variables: ax+ by+ c =0 , a≠0 & b≠0 and a ...

CBSE Class 9 Maths extra questions and answers for Chapter 4 - Linear Equations In Two Variables can are entirely based on the important concepts given in the NCERT book. Therefore these questions ...

Figure 1: A classification decision tree is built by partitioning the predictor variable to reduce class mixing at each split. Figure 2: Regression trees predict a continuous variable using steps ...