? So, what, exactly, am I looking for? You're looking for a wide part for a function that you don't expect to have a wide part. So start at the widest part an

? So, what, exactly, am I looking for? You're looking for a wide part for a function that you don't expect to have a wide part. So start at the widest part and work your way up each hill. If you see a function that's still relatively wide that you think should not be wide, that's when you go look into why it's wide.