4 easy calc questions (with work in text please)

1. Show that the function f(x) = x^-5 + cos(2x) is even, odd, or neither.

2. Determine the equation of a line, in slope-intercept form, that passes through the points (9, -2) and (12, 0).

3. Given f(x) = x³ + 2 and g(x) = x - 3, find f(g(x)).

4. Identify the maximum and minimum values of the function y = 3 cos x in the interval [-2, 2]. Use your understanding of transformations, not your graphing calculator.