May someone please help me on my calculus practice, I'm confused on the "power rule" and how to complete these questions?

For the following equation, what is the instantaneous rate of change at x = -2? f (2) - -2- 4x2\fGiven the function f (x) = 23 + 9x2 + 19x + 4, determine all coordinate points (x, y) on the graph of f such that the line tangent to f at (x, y ) has a slope of -5