0, is cnte raph costai function. 229en points is called MathLat 4x-y+ 2z = 11 + 2y-z -1 2x + 2y -3z = -1 7. e is a solution x 8 x - y+ 3z 3x +y-2z = -2 2x + 4y +z = 0 3x + 2y - 3z = -2 2x- 5y + 2z = -2 9. 4x - 3y +4z = 10 2x + 3y +7z = 13 3x + 2y 5z = -22 5x +7y- 3z = -28 10. 2x- 4y 3z = 17 x + 2y-z= 0 4x-y-z = 6 11. + z= 3 12. X +2y- z= 1 y + z 3 2x 2x+ y = 2 13. lution or if ations are x + y-z=4 3x + 2y +z 0 www 3y +5z 20 14. y-4z = -16 3x 2y +9z= 36 ww.w -4 15. z = 1 2x + y+ 3z =-21 00 5)- 10--0 -t6-2-0 4 0UT3 Systems of Linear Equation 216 CHAPTER 3 30. 16. X+z4 +z=4 2x + y+ 2z = 1 3x- y+z = 2 - -z= 0 17. z = 0 I 3x +4y +5z = x- 2y + 3z = -6 2.x 4y + 6z= 18. 5x 2y 5z = 1 10x 4y 10z = 2 15х — бу —15z %3D 3 19. + 2y + z = 4 3x - 4y + z = 4 6x - 8y + 2z = 8 20. 21. 3(2.x + y) + 5z = -1 2(x 3y + 4z) = -9 4(1 x) -3(z 3y) 7z - 3= 2(x 3y) 5y 3z - 7 4x 22. 4 + 5z 3(2x- y) ww In Exercises 23-26, find the quadratic function y whose graph passes through the given points. 23. (-1,6), (1,4), (2,9) ax + bx + c N N

0, is cnte raph costai function. 229en points is called MathLat 4x-y+ 2z = 11 + 2y-z -1 2x + 2y -3z = -1 7. e is a solution x 8 x - y+ 3z 3x +y-2z = -2 2x + 4y +z = 0 3x + 2y - 3z = -2 2x- 5y + 2z = -2 9. 4x - 3y +4z = 10 2x + 3y +7z = 13 3x + 2y 5z = -22 5x +7y- 3z = -28 10. 2x- 4y 3z = 17 x + 2y-z= 0 4x-y-z = 6 11. + z= 3 12. X +2y- z= 1 y + z 3 2x 2x+ y = 2 13. lution or if ations are x + y-z=4 3x + 2y +z 0 www 3y +5z 20 14. y-4z = -16 3x 2y +9z= 36 ww.w -4 15. z = 1 2x + y+ 3z =-21 00 5)- 10--0 -t6-2-0 4 0UT3 Systems of Linear Equation 216 CHAPTER 3 30. 16. X+z4 +z=4 2x + y+ 2z = 1 3x- y+z = 2 - -z= 0 17. z = 0 I 3x +4y +5z = x- 2y + 3z = -6 2.x 4y + 6z= 18. 5x 2y 5z = 1 10x 4y 10z = 2 15х — бу —15z %3D 3 19. + 2y + z = 4 3x - 4y + z = 4 6x - 8y + 2z = 8 20. 21. 3(2.x + y) + 5z = -1 2(x 3y + 4z) = -9 4(1 x) -3(z 3y) 7z - 3= 2(x 3y) 5y 3z - 7 4x 22. 4 + 5z 3(2x- y) ww In Exercises 23-26, find the quadratic function y whose graph passes through the given points. 23. (-1,6), (1,4), (2,9) ax + bx + c N N

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter10: Analytic Geometry

Section10.5: Equations Of Lines

Problem 48E

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