How do you transform exponential functions

Given the graph below state whether or not the relation is a function, and give the domain and range.

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

Mozart lenses inc. recently introduced seelites, a thinner lens for eyelasses. of a sample of 800 eyeglass wearers, 246 said they would purchases their next pair of eyeglasses with the new lenses. lenses inc. estimates that the number of people who purchase eyeglasses in a year is 1,700,000. most eyeglasses wearer buy one new pair of eyeglasses a year. what is the annual sales potential for the new lenses.