can someone check my answer

Question

jennylove · Answer

attachment

jennylove · Answer

@dude @Ultrilliam if either of you guys can ?

Shimansk123 · Answer

that is right @jennylove

jennylove · Answer

may i ask why ? i kinda did a educated guess on it @Shimansk123

jennylove · Answer

i really like to understand the problem rather than just receive the answer. its very helpful (:

Shimansk123 · Answer

okay my badd I am really bad at explaining problems but you could ask @dude and @Razor

dude · Answer

|dw:1600383290230:dw|

I did the f' graph (assumption) here
[If you're not sure how to do this I can show you]

Based on the graph itself (just looking at whether its value itself is positive or negative)
|dw:1600383433859:dw|

You were right

jennylove · Answer

oh wow thank you for including the image! that makes sense, i am having some difficulty with these type of questions because everything is similar so finding that one difference is a bit difficult. @dude

1 attachment