What is the equation of the line shown in this graph

Julia chooses a card at random from her set of cards. what is the probability that the card is labeled cat or hamster?

This is about circle theorems. someone asap : (

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