Determine which relation is a function.

a.
{(–4, 3), (–2, 3), (–1, 2), (2, 5), (3, 2)}

b.
{(–4, 1), (–2, 3), (–2, 1), (–1, 5), (3, 2)}

c.
{(–4, 1), (–2, 3), (–1, 2), (3, 5), (3, 2)}

d.
{(–4, 1), (–2, 3), (–1, 1), (–1, 5), (3, 2)}

A) find the derivative of the inverse to f(x) = 3x + sint at x 6. b) (cale) find the derivative of the inverse to f(x)+3sin at x 6. if x +2y -34, ind he behaviar of the cure at 4,.3), c) a. increasing, concave up d. decreasing, concave down b. increasing, concave down e. decreasing, inflection point c. decreasing, concave up