Question

http://prntscr.com/ckjk6g

Answer 1

@IrishBoy123

Answer 2

they want the y value of when x = 4
what do you think?
HINT:
it cannot be 1 because it lays over that
and it cannot be 1.9 because it lays below that

Answer 3

in fact it can't be 1.8 either because it certainly lay below that too.

Answer 4

Its also less than 1.5

Answer 5

you can only give an approximate figure

Answer 6

clearly we eliminate all options except the 1.2 sooo....!