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 C=[5,2,2,-1] to get a matrix that represents the encoded text. The matrix representing the encoded text is [48,73,30,136,78,35, . What is the secret phrase? Determine the location of spaces after you decode the text. FIND THE PRODUCT FIND THE INVERSE FINE IS THE PIANO FINE IS A WARM DAY

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i think the answer would be c

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function

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its what i use

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