approximate when the function is positive negative increasing or decreasing. and if you are a troll please go away i need an actual answer

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

Edger needs 6 cookies and 2 brownies for every 4 plates how many cookies and brownies does he need for 10 plates