Yvette encoded a secret phrase using matrix multiplication. Using A = 1, B = 2, C = 3, and so on, she multiplied the clear text

code for each letter by the matrix

to get a matrix that represents the encoded text. The matrix representing the

to get a matrix that represents the encoded text

1 2

48 73 114

encoded text is

(21 32 50

decode the text.

30 136

13 58

78 35

35 15

What is the secret phrase? Determine the location of spaces after you

FIND THE PRODUCT

FIND THE INVERSE

FINE IS THE PIANO

FINE IS A WARM DAY

Mark this and retum

Save and Exit

Sunt