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2-3 Modeling Real World Data with Matrices. Pre Calc A. Vocabulary. Matrix Elements Dimensions Additive identity matrix scalar. Matrix. Rows x Columns Named by Capital Letters 5 8 4 9 -2 3 0 3 4 7 1 -7. 3 x 4 matrix 12 elements. Ex 17:. Find the values of x and y y 4x
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2-3 Modeling Real World Data with Matrices Pre Calc A
Vocabulary • Matrix • Elements • Dimensions • Additive identity matrix • scalar
Matrix • Rows x Columns • Named by Capital Letters 5 8 4 9 -2 3 0 3 4 7 1 -7 3 x 4 matrix 12 elements
Ex 17: • Find the values of x and y y 4x y – 3 2x + 1
Ex : • Find A + B if A = -7 4 and B = 6 10 5 0 8 -9 3 -1 -2 5
Ex last one: If A = 5 -2 find 4A 3 8 -1 -9