1)

D:all real no.

R:all real no.

2)

D:all real no.

R:all real no.

3)

D:all real no. except 2

R: all real no.

4)

D:x<=4

R:all real no.

5)

D:-5<=x>=5

R:all real no.

6)

D:-2<=x<=2

R:0<=y<=2

7)

D:-1<=x>=1

R: all real no.

8)

D:all real no.

R:all real no.

9)

D:all real no. except zero

R:all real no. except zero

10)

D:x not = 2

R:y not = 1

(If any are wrong tell me which one and try solving it for me )

Thank you