If you graduates in 2010 the year would be 2003 if you were in 6th grade
Yeah. You basically have to look at every x value and see if for every x value, is there ONLY one y-value. So in your example, it is a function because every x value has only one y value. Let’s say you had (1,3) and (1,5). That would not be a function because the x value of 1 has TWO y values (3 and 5), therefore it is not a function.
That’s how you can easily spot if something is a function by just looking at a handful of ordered pairs. I hope this makes sense.
Quadrant 1 is the top right box
Quadrant 2 is the top left box
Quadrant 3 is the bottom left box
Quadrant 4 is the bottom right box
So Point G is the Quadrant 4 because it is in the bottom right box.
(1)
we know that
potential will be added when cells are connected in series
so, the polarity must be same
positive of one cell must be connected to negative of another cell
we can see only one option
option-(i)......Answer
(2)
(A)
we know that

so, smaller value of I means larger value of R
so,

option-3.....Answer
(B)
we know that
maximum resistances can be obtained when resistors are connected in series
so,



so, option-4........Answer
(C)
we know that series combination
we add resistances
so, we will get largest value of equivalent resistance
so, option-2..........Answer