Question 9: (6 points)

Format:

Enter your solution as a matrix or a column vector, using the

vector/matrix palette tool.

• When entering an augmented matrix, do not include any divider before

the final column, i.e. input (Ab) rather than (Alb).

• If no solution exists, enter the single character "n" (without the quote

marks).

• Enter your answers exactly (without rounding), i.e. input rather than

0.333.

Here is a system of three linear equations:

2x+4z=3

4x + y + 5z = -5

-62-3y-3z = -4

a. Show/hide

Write down the augmented matrix:

b. Show/hide

Put the augmented matrix into row echelon form:

c. Show/hide

Find one point that is a solution to this system of equations.

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