270° clockwise about the origin 90° counterclockwise about the origin
180° about the origin
90° clockwise about the origin
The vertices of a triangle are A(–2, 1), B(3, 2), and C(4, 3). Your friend finds the coordinates of the image after a rotation 90° counterclockwise about the origin. Is your friend correct? Explain your reason

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step-by-step explanation:

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f(x)=4

step-by-step explanation:

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