Answer:
d. and h.
Explanation:
from what I can see from the unfocused picture, there are the following whole number points in the function :
(1, 3)
(2, 2)
(5, 1)
a. and d. are the only ones supporting (1, 3). x = 1 makes the square root 0 and therefore y (the functional result) 3.
but (2, 2) or (5, 1) then show we need the negative square root. x = 2 makes the square root 1, and we need -1 to be added to 3 to create 2 as y value.
so, d. is correct.
the square root makes it necessary that x >=1, because for smaller x values the square root would be for a negative value, which is not defined for real numbers.
and the maximum for y is for x=1 : y=3.
for larger x values the y values just go further down.
so, h. is the second right answer.