The graph of a function f is given Assume that each point li

The graph of a function f is given. (Assume that each point lies on a gridline.) (a) Find the domain and range of f. (Enter your answer using interval notation.) domain range

Solution

The domain of a function, f, is the set of all x for which there is some y such that (x,y) is in f. The range is the set of all y that are obtained by all x that are in the domain.

Domain is all x values

Hence 0 < x <8

Range is all y values

1 <y < 7.