Answer:

Step-by-step explanation:
the minimum of f is for x = 1 and f(1)=0
f is decreasing for x<=1 and increasing for x>=1
so the domain is 

x>=1 so x is positive and we can take the square root
so 
x ≠ (π/2) + nπ describes the domain of y = sec x, where n is any integer. The
correct answer between all the choices given is the third choice or letter C. I
am hoping that this answer has satisfied your query and it will be able to help
you, and if you would like, feel free to ask another question.
Answer:
105°
Step-by-step explanation:
The entire shape equals 720°, so subtract all the other angles from 720 and you get your answer
D. Line Graph
It can give you a clearer illustration of how long someone plays a video game.
P.S. my line would probably run off the grid. :-)<span />