Question

Use the Gauss-Jordan elimination process on the following system of linear equations to find the value of z.

a) z = 5

b) z = 0

c) z = 4

d) z = 2

e) z = 3

f) None of the above.

Use the Gauss-Jordan elimination process on the following system of linear equations to find the value of x.

a) x = -10

b) x = -21

c) x = -11

d) x = 8

e) x = -13

f) None of the above.

Which of the following matrices are in row-reduced form?
(Note: The dotted vertical line in each matrix should be a single vertical line.)

I.

II.

III.

a) I and III only

b) II and III only

c) All of them

d) None of them

e) I and II only

f) None of the above.

Answer 1