Algebra Math final Exam

Which augmented matrix for the linear system

8x-37y=8

2x+12y=3

• [8 -37 l 8 ]

  [2 12 l 3 ]

• [8 37 l 8 ]

  [2 12 l 3 ]

• [8 -37 l 8 ]

  [2 -12 l 3 ]

• [-8 37 l 8 ]

  [2 12 l 3 ]

Which augmented matrix for the linear system

16y=4

9x-y=2

• [16 -1 l 4]

  [9 -1 l 2]

• [0 16 l 4]

  [9 -1 l 2]

• [16 1 l 4]

  [9 1 l 2]

• [0 16 l 4]

  [9 1 l 2]

Which augmented matrix for the linear system

3x+2y+10z=3

-6x+2y+5z=13

4x+2=18

• [3 2 10 l 3]

  [6 2 5 l 13]

  [4 0 1 l 18]

• [3 2 10 l 3]

  [-6 2 5 l 13]

  [-4 0 1 l 18]

• [-3 2 10 l 3]

  [6 2 5 l 13]

  [4 0 1 l 18]

• [3 2 10 l 3]

  [-6 2 5 l 13]

  [4 0 1 l 18]

whats the linear system from augmented matrix

[1 1 -1 l 7]

[1 -1 2 l 3]

[2 1 1 l 9]

• x+y-z=7

  x-y+2z=3

  2x+y+z=10

• x-y-z=7

  x-y+2z=3

  2x+y-z=10

• x+y-z=7

  x-y+2z=3

  2x-y-z=10

• x-y+z=7

  x-y+2z=3

  2x+y+z=10

whats the linear system from augmented matrix

[1 3 1 l 10]

[1 -2 -1 l -6]

[2 1 2 l 10]

• x+3y+z=10

  x+2y-z=-6

  2x+y+2z=10

• x+3y+z=-10

  x-2y-z=6

  2x+y+2z=-10

• x+3y+z=10

  x-2y-z=-6

  2x+y+2z=10

• x+3y+z=10

  x-2y-z=6

  2x+y+2z=10

system of equations: solve by subsitution

5x+9y=16

x+2y=4

• (4,-4)

• (-4,4)

• (2,-2)

• (-2,2)

system of equations: solve by addition/elimination

• (-1,2)

• (1,-2)

• (-2,1)

• (2,-1)

Identify the dimension of the matrix.

E=[8]

identify the dimension of this matrix?

c= [3 -5]

[2 -1]

identify the dimension of this matrix?

F=[7,4,-5,11]