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