Pre-Calculus - Eduware

VI. SYSTEMS OF EQUATIONS AND MATRICES
2. Solving Systems of Inequalities
2394. Use Gauss Jordan elimination to solve for x, y, and z.
2397. Which set of inequalities is depicted by the shaded area in
the picture below?
What is the final step in the reduction?
(1) (3)
(2) (4)
2396. Which set of inequalities is depicted by the shaded area in
the picture below?
(1) y % x 3
y % 4
x & 0
(2) y & x 3
y % 4
x & 0
(3) y & x 3
y & 4
x & 0
(4) y & x 3
y % 4
x % 0
2405. Use row operations to reduce the following matrix to
reduced row echelon form.
(1) y % –x
y & x
y % 3
(2) y & –x
y % x
y & 3
(3) y & –x
y & x
y % 3
(4) y & –x
y & x
y & 3
(1) (3)
(2) (4)
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