Analyzing statements about tangents and secanta

For what values of b will f(x)= logbx be a decreasing function? (16 )

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2