What is the value of the function when x = 1?

y =

a graph of a function. the function graph goes through point negative 4, 0 and point 1, 2.

Just look at the x axis (horizontal) and see where x=1 or go 1 unit from the origin (0,0), then go up untill you hit a point that coresponds witha y value which looks to be 2 so coresponding y for x=1 is y=2

if we are given point (1,2) then
(x,y)
x=1
y=2
that is the solution already