Step-by-step explanation:

4x^5 + 3x + 1...the ^5 makes it a fifth degree....and the leading coefficient is 4
Take the deritiivive

it is zero at pi/4 and it repeats at every pi
minimum at where slope goesfrom negative to positive
so at 5pi/4 and 13pi/4 so at every 2pi interval
evaluate origial at 5pi/4

=

=

or aprox 1.22509
Answer:
B is the correct answer!
Step-by-step explanation:
It starts at 6 and ends at 11.
Hope this helps & please mark brainiest....
Also can I plz get brainiest?
Answer: -0.07142857142
I looked the question up on google ;)