Answer: Choice B) pi/4 < x < 3pi/4
Graph the function using a graphing calculator. I used desmos which is a free online tool. The graph is shown below as the red curve. The blue region represents the region in which the red curve is going downhill as you read from left to right on the interval from x = pi/4 to x = 3pi/4.
 
        
             
        
        
        
Answer:
B) g(x)
Step-by-step explanation:
Since f(x) has even power 4 it never goes below -2 because the statement (x-13)^4 can be minimum 0 when x = 13
The second statement g(x) is in odd power so as x goes below 0 its minimum increases with cubic speed. So it has minimum of -∞
 
        
             
        
        
        
I can number 1 is well I mean I’m learning this too but I suck at it so...sorry I can’t help but I can help with other stuff like social studies, science, and spelling