What is also know as a linear system

What is the logarithmic function modeled by the following table? x f(x) 9 2 27 3 81 4

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9