Subtract with Two Scalars (Level 1)

This math topic focuses on subtracting matrices with two scalar operations. Questions involve defining scalar values and performing resultant matrix operations such as multiplying matrices by these scalars followed by subtracting one from the other. Answers are presented in multiple-choice format, allowing for selection from various options. These problems aim to enhance understanding of basic matrix operations combined with scalar multiplication and subtraction, skills fundamental in linear algebra.

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Matrices - Subtract with Two Scalars Worksheet

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Math worksheet on 'Matrices - Subtract with Two Scalars (Level 1)'. Part of a broader unit on 'Matrices' Learn online: app.mobius.academy/math/units/matrices/
1
A LaTex expression showing M = \left[ {\begin{array} {cc} 9 & 6 & 3 \\ 4 & 1 & 0 \end{array} } \right]\\Y = \left[ {\begin{array} {cc} 5 & 0 & 5 \\ 0 & 1 & 7 \end{array} } \right]
Find the resulting matrix for rM - cY when r = 3 and c = 2
a A LaTex expression showing \left[ {\begin{array} {cc} 2 & 3 & 6 \\ 9 & 7 & 6 \end{array} } \right]
b A LaTex expression showing \left[ {\begin{array} {cc} 3 & 3 \\ 2 & 2 \end{array} } \right]
c A LaTex expression showing \left[ {\begin{array} {cc} 17 & 18 & -1 \\ 12 & 1 & -14 \end{array} } \right]
d A LaTex expression showing \left[ {\begin{array} {cc} 27 & 18 & 9 & -10 & 0 & -10 \\ 12 & 3 & 0 & 0 & -2 & -14 \end{array} } \right]
e A LaTex expression showing \left[ {\begin{array} {cccc} 27 & 18 & 9 \\ 12 & 3 & 0 \\ -10 & 0 & -10 \\ 0 & -2 & -14 \end{array} } \right]
2
Find the resulting matrix for zB - nY when z = 4 and n = 3
A LaTex expression showing B = \left[ {\begin{array} {cc} 8 \\ 9 \end{array} } \right] \;\; Y = \left[ {\begin{array} {cc} 1 \\ 4 \end{array} } \right]
a A LaTex expression showing \left[ {\begin{array} {cc} 0 \\ 1 \end{array} } \right]
b A LaTex expression showing undefined
c A LaTex expression showing \left[ {\begin{array} {cc} 29 \\ 24 \end{array} } \right]
d A LaTex expression showing \left[ {\begin{array} {cc} 7 \\ 6 \end{array} } \right]
e A LaTex expression showing \left[ {\begin{array} {cc} 3 \\ 2 \end{array} } \right]
3
Find the resulting matrix for yB - mP when y = 3 and m = 2
A LaTex expression showing B = \left[ {\begin{array} {} \end{array} } \right]\\P = \left[ {\begin{array} {} \end{array} } \right]
a A LaTex expression showing \left[ {\begin{array} {cc} 3 & 3 \\ 2 & 2 \end{array} } \right]
b A LaTex expression showing \left[ {\begin{array} {} \end{array} } \right]
c A LaTex expression showing undefined
4
Find the resulting matrix for dB - mP when d = 4 and m = 3
A LaTex expression showing B = \left[ {\begin{array} {cc} 0 \\ 4 \end{array} } \right] \;\; P = \left[ {\begin{array} {cc} 7 \\ 5 \end{array} } \right]
a A LaTex expression showing \left[ {\begin{array} {cc} -19 \\ 1 \end{array} } \right]
b A LaTex expression showing \left[ {\begin{array} {cc} -21 \\ 1 \end{array} } \right]
c A LaTex expression showing \left[ {\begin{array} {cc} 7 \\ 8 \end{array} } \right]
d A LaTex expression showing \left[ {\begin{array} {cc} 7 \\ 6 \end{array} } \right]
e A LaTex expression showing \left[ {\begin{array} {cc} 4 \\ 8 \end{array} } \right]
5
Find the resulting matrix for mB - yN when m = 4 and y = 2
A LaTex expression showing B = \left[ {\begin{array} {} \end{array} } \right]\\N = \left[ {\begin{array} {} \end{array} } \right]
a A LaTex expression showing \left[ {\begin{array} {} \end{array} } \right]
b A LaTex expression showing undefined
c A LaTex expression showing \left[ {\begin{array} {cc} 4 & 4 \\ 2 & 2 \end{array} } \right]
6
Find the resulting matrix for xN - zB when x = 3 and z = 3
A LaTex expression showing N = \left[ {\begin{array} {ccc} 4 & 8 & 2 \\ 8 & 2 & 4 \\ 0 & 7 & 2 \end{array} } \right]\\B = \left[ {\begin{array} {ccc} 9 & 1 & 6 \\ 1 & 8 & 3 \\ 5 & 9 & 0 \end{array} } \right]
a A LaTex expression showing \left[ {\begin{array} {ccc} -15 & 21 & -12 \\ 21 & -18 & 3 \\ -15 & -6 & 6 \end{array} } \right]
b A LaTex expression showing \left[ {\begin{array} {ccc} 12 & 24 & 6 & -27 & -3 & -18 \\ 24 & 6 & 12 & -3 & -24 & -9 \\ 0 & 21 & 6 & -15 & -27 & 0 \end{array} } \right]
c A LaTex expression showing \left[ {\begin{array} {cc} 3 & 3 \\ 3 & 3 \end{array} } \right]
d A LaTex expression showing \left[ {\begin{array} {ccc} 9 & 7 & 1 \\ 1 & 9 & 2 \\ 4 & 9 & 8 \end{array} } \right]
7
Find the resulting matrix for zY - cD when z = 2 and c = 4
A LaTex expression showing Y = \left[ {\begin{array} {ccc} 5 & 3 \\ 3 & 2 \\ 0 & 1 \end{array} } \right] \;\; D = \left[ {\begin{array} {ccc} 7 & 3 \\ 5 & 1 \\ 2 & 5 \end{array} } \right]
a A LaTex expression showing \left[ {\begin{array} {ccc} 5 & 1 \\ 9 & 9 \\ 0 & 3 \end{array} } \right]
b A LaTex expression showing \left[ {\begin{array} {ccc} 10 & 6 & -28 & -12 \\ 6 & 4 & -20 & -4 \\ 0 & 2 & -8 & -20 \end{array} } \right]
c A LaTex expression showing \left[ {\begin{array} {ccc} 0 & 8 \\ 3 & 1 \\ 0 & 0 \end{array} } \right]
d A LaTex expression showing \left[ {\begin{array} {ccc} -18 & -8 \\ -14 & 0 \\ -8 & -21 \end{array} } \right]
e A LaTex expression showing \left[ {\begin{array} {ccc} -18 & -6 \\ -14 & 0 \\ -8 & -18 \end{array} } \right]
Matrices - Subtract with Two Scalars (Level 1) - Mobius Math Academy