The Baltimore Zoo feeds their elephants a combination of fruit and grass. The zookeeper would like to create a model to represen
t how much food the elephants eat. Each morning, the zookeeper puts out 22 pounds of fruity and an additional 30 pounds of grass per elephant. Which of the following models the linear relationship between the total weight of elephant food, f(x), based on the number of elephants, x? Select all that apply.