Objective Video Example by Mrs. G Give It a Try Lesson 4.1 Add
and subtract matrices Multiply a matrix by a scalar number Solve a
matrix equation
Slide 3
Video Objective Video Example by Mrs. G Give It a Try
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Slide 4
Example by Mrs. G Objective Video Example by Mrs. G Give It a
Try Click to continue. Perform the indicated operation, if
possible. a)b)
Slide 5
Example by Mrs. G Objective Video Example by Mrs. G Give It a
Try Click to continue. Perform the indicated operation, if
possible. a)b) Check the dimensions. Dimensions of a matrix are
written as rows x columns. (R x C) Dimensions must match in order
to add or subtract matrices. Step 1: 3 x 11 x 3 Dimensions are
different. Therefore, matrices cannot be added. 2 x 3 Dimensions
are the same. Therefore, matrices can be subtracted.
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b) Subtract corresponding entries: Example by Mrs. G Objective
Video Example by Mrs. G Give It a Try Click to continue. If
dimensions match, add or subtract corresponding entries. Step
2:
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b) The answer is the 2 x 3 matrix: Example by Mrs. G Objective
Video Example by Mrs. G Give It a Try
Slide 8
Objective Video Example by Mrs. G Give It a Try Perform the
indicated operation, if possible. 1.2. Bring your work and answer
to our next class!