Question

21 -6 - NO a) D : {all real numbers}, R: {all real numbers Ob) D: {all real numbers), R; {y >0} O c) D: all real numbers), R: {y < 0} O d) D: {x>0}, R: {all real numbers

Answer 1

The domain is

`D\colon\mleft\lbrace x\ge0\mright\rbrace`

and the range

`R=\text{all real numbers}`

Then, the answer is d)