i think
y=(x+2)^2
Domain it is the all values which x can be so there is can be all the numbers
So your domain is (-infinity,+infinity)
Range is the all values of y since the equetion is squared so the y value cannot be less than 0 let s check:
(x+2)^2=0
x=-2
so your range is: (0,+infinity)
X-intercept it is when Y is 0 :
(x+2)^2=0
x=-2
Y-intercept when X is 0:
(0+2)^2=Y
Y=4
here s your graph:
https://www.desmos.com/calculator/xcxwilih1w
and you can do that by yourself