In his new living room, kirk installed carpeting on 1/2 of the floor and tile on another 1/4 of the floor. what fraction of the floor is now covered by either carpet or tile?

b) the dogs need to shift their focus to human scent.

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.