Slope of (-3, 1), (1, 9) and slope of (-2, -9), (-1, -7)

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2

Pls yall i really need the answer fr fr