What is the polynomial function of lowest degree with lead coefficient 1 and roots i, –2, and 2? A. f(x) = x3 – x2 – 4x + 4
B. f(x) = x4 – 3x2 – 4
C. f(x) = x4 + 3x2 – 4
D. f(x) = x3 + x2 – 4x – 4

There already is an answer to this question somewhere else, but it is very clearly incorrect (and confusing).

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

step-by-step explanation:

tangent z: 4/3

cosine y: 4/5

cotangent y: 4/3