Chosen

Math 1314 Exam 4 Review A. Baumgardner 1. True or False: a. A system of equations represented by a represent of ii lines with the same slope always has no solution. b. A system of equations represented by a chart of deuce lines with slopes that are negative reciprocals always has one solution. c. If two lines do not have exactly one rate of flow of intersection then they must be parallel. d. The system of equations Ax ? By = 1 and ? Ax + By = ?1 has no solution. e. A non- substantive hyaloplasm cannot have a erratic solution. f. The numeral function for Gaussian elimination can be apply plainly for square matrices. g. A square matrix that has a unique solution has a bring down matrix with 1s along the one-sided and 0s above and below the 1s. h. A square matrix with an all-zero make believe has infinitely many solutions. 2. Solve the divulge systems of linear equations by substitution. completely solutions must be indite as consistent pairs. x + y = 3 a. x ? y = 1 b. 2x + y = 7 ?2 x ? y = 5 4x ? y = 1 8x ? 2 y = 2 c. 3. Solve the given over systems of linear equations by elimination. both solutions must be written as ordered pairs. ?4 x + 2 y = 3 a. 4x ? y = 5 b. 2x + 5 y = 5 ?4 x ? 10 y = ?10 2x + 5 y = 5 ?4 x ? 10 y = 10 c. 4. Solve the given systems of linear equation by graphing. All solutions must be written as ordered pairs. 5x + 2 y = 3 a. 4x ? 2 y = 6 b. 5x ? y = 2 5 x ? y = ?2 x + 2 y = ?6 2 x + 4 y = ?12 c. 5. What is the size (order) of the following matrices? ? 5? a. ? ?7 ? ? ? ? 9? ? ? ? 9 ?5 3 2 7 ? b. ? ?1 2 0 ?2 ?3? ? ? ? 1 3 ?5 7 9 ? ? ? 6. Solve for the indicated variables. ? 2a ? 1 3 4c + 2 ? ?9 5 ? 2b 2 ? a. ? d 2 2d 11 ? ?6 7e + 2 ? = ?9 ? ? ? ? ?4 g ? 9 h 72 ? ?5 17 72 ? ? ? ? ? 1? ? 9 ? ?4 x ? ? ?w +1 b. ? 2 ?= ? ? y ? 3 z + 7? ?3 3 ? ? 7. State whether or not apiece matrix is in row-echelon form (REF). If it is, determine whether it is in reduced row-echelon form (RREF). State you r answer using complete sentences. 4? ?1 0 0! ?0 1 1 2? a. ? ? ? 0 0 1 ?7 ? ? ? ? 1 0 0 4? b....If you want to get a estimable essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper