With
, we have

Since
, we can further write this as

The slope of a horizontal line is always 0 as slope is rise over run . In the graph if you take any two points the y value is always 4 (1,4) and (2,4)
slope is 4-4/2-1=0/1 =0
I think the answer c is the right answer
fffffffffff ffffffffffff ffffffffffffff ffffffffffff fffffffffff fffffffffffffffff
Step-by-step explanation: