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McGraw Hill Glencoe Algebra 2, 2012

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McGraw Hill Glencoe Algebra 2, 2012 View details

Study Guide and Review

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Exercise 31 Page 209

Start by adding the matrices and then multiply the result by the scalar.

-3 & 27 9 & 12

Practice makes perfect

We can see that the given matrices have the same dimensions, 2* 2. We will start by adding the matrices.

3( -2 & 0 6& 8 + 1 & 9 -3 & -4 )

Add matrices

3 -2+1 & 0+9 6+(-3) & 8+(-4)

Add terms

3 -1 & 9 3& 4

Now we can multiply our result matrix by 3.

3 -1 & 9 3& 4

Multiply matrix by 3

3(-1) & 3(9) 3(3) & 3(4)

Multiply

-3 & 27 9 & 12

Subchapter links

Exercises p.206-210