If you wanted to create a blurred background effect when taking a portrait, then it is a good idea to include more back ground in your picture.
Wdym sorry I didn’t understand can u explain more
TU increases with an increase in consumption of a commodity as long as MU is positive. In this phase, TU increases but a diminishing rate as MU from each successive unit tends to diminish. ... When consumption is increased beyond the point of satiety, TU starts falling as MU becomes negative.
