Matrices row operations practice

This is an example of a

• System of Quadratic Equations

• Reduced Row Echelon Form

• Augmented Matrix

• A Canine Doing a Backflip

This is an example of

• Row Echelon Form

• Reduced Row Echelon Form

• Really Reduced Echelon Form

• Really Really Easy Form

What is the solution to the systems of equations represented by the 3x4 Matrix?

• (4, 6, 2)

• (-6, 2, 2)

• All Real Numbers

• No Solutions

Using back-substitution, calculate the solution for the REF matrix.

• (3, -6, 3)

• (-6, -6, 3)

• (6, -6, 3)

• (-6, -6, 3)

Jeffrey wrote a matrix to represent his system of equations. What was his mistake

• The z's are not aligned correctly

• There should be a one in the top row for zero

• There should be a zero in the second column of the third representing the y

• Nothing. This is correct.

What is the solution to the augmented matrix?

• (3,6,2)

• (3,-5,3)

• (5,5,3)

• ((5/9), (105/9), (-23/9))

• (3, 9 -1)

• (0, 3, 7)

• All Real Numbers

• No Solution

Answer the question

• lollipops are $3, candy bars are $2, peanut butter bars are $1

• lollipops are $2, candy bars are $2, peanut butter bars are $3

• lollipops are $1, candy bars are $2, peanut butter bars are $3

• lollipops are $1, candy bars are $2.50, peanut butter bars are $4

This is an example of

• Row Echelon Form

• Reduced Row Echelon Form

• Really Reduced Echelon Form

• Really Really Easy Form

Which system of equations represent the following situation? Neo is back in the matrix. This trip took him 5 hours and he was able to rescue 2 cats, 1 dog, and 1 person. His last time in the matrix took him 8 hours and he rescued 2 dogs and 3 people. The time before took him 10 hours and he rescued 1 cat and 4 people.

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