Answer:

Step-by-step explanation:
The reciprocal of 5: 
The negative reciprocal of 5: 
Bottom left. Because of th eminus sign, the v curve is "upside-down" and because of the +1, its function value peak is at 1
Answer:
i’m pretty sure it’s because they make 180°
Step-by-step explanation:
Step 1: Write out the function given

Step 2: Interprete the question given

The question requested we find the summation of the first five terms for f(k/2), when k is 1, 2, 3, 4, and 5
Step 3: Find the expression for f(k/2)


Hence, the answer is 33.75