Test 1 ReviewMA 114-003Spring 2017Test 1 will cover sections 1.1-1.4, 2.1-2.5, and 3.1-3.2 inFinite Mathematicsand its Applications, Goldstein, Schneider, and Siegel, 11th Edition.Topics•Equations of lines: slope-intercept/standard form, and point-slope form•Graphing lines: using 2 ”easy” points or slope and y-intercept•Graphing linear inequalities•Finding feasible set of a system of linear inequalities•Finding the intersection point of a pair of lines•Gauss-Jordan elimination method with pivoting–Solving systems of linear equations with more than 2 variables using an aug-mented matrix and Gauss-Jordan elimination with pivots–Identifying whether the system has a unique solution, infinitely many solutions,or no solution•Matrix arithmetic–Adding and subtracting matrices: matrix sizes need to agree–Scalar multiplication–Multiplying matrices: inner dimensions need to agree•Matrix inverse–Finding inverse of 2×2 matrix: using determinant and formula–Finding inverse of matrix of larger dimension: using Gauss-Jordan elimination–
