Which of the following rules describes the function graphed below? Output = Input
Output = 2 • Input − 1
Output = Input + 2
Output = 3 • Input − 2

can you rephrase the question ? it is unclear : -)

step-by-step explanation:

4.28095238095 that is the answer

the diagram shows you   triangle def with de=4, df=9 and de≠df≠ef.

the sum of the lengths of two triangles' sides are always greater than the length of the third side:

substitute sides lengths:

then 5< ef< 13 (option 3 is true).

def is a scalene triangle with all sides of different lengths (option 5 is true, option 2 is false).

answer: correct choices are 1, 3 and 5