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State the order of a matrix and locate its elements

DIFFICULTYintrostandardchallengeexam
QUESTION TYPEMix of allChange
State the order of a matrixState the order and read an entryNOWMix of allRecommended
Question 1 of 8

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A matrix \(B\) is defined below

\[B = \begin{bmatrix} -10 & 9 & 9 \\ 7 & 5 & -8 \end{bmatrix}\]
(a)2 marks

What is the order of \(B\)?

(b)1 mark

Write down the value of the element \(b_{23}\)