Algebra 2 Unit 3 Test Review

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• 3

• -2

• you wouldn't multiply by anything

• -1

• 3

• -2

• you wouldn't multiply by anything

• -1

• don't do anything to the top and bottom rows, just add the columns

• multiply the top row by -4 and the bottom row by -9 then add the columns

• multiply the top row by 4 and the bottom row by -9 then add the columns

• multiply the top row by -9 and the bottom row by -4 then add the columns

If we converted the system into a matrix what would the bottom row look like?

• 20 12 24 7

• 0 29 7 7

• 125 -180 -60 29

• No Solution

• Infinitely Many

• (1,0,0)

• (6,1,1)

• No Solution

• Infinitely Many

• (0,0,0)

• (-3,-2,0)

• -7R1+R3

• -1/7R1+R3

• -1/7R3

• 1/7R3

• -1/8R3

• 8R1+R3

• 8R2+R3

• 1/8R3