Question

Hi, how do i find the domain and range of the graph and check if they are all real numbers or not?

Answer 1

Given:

Graph is given

`\text{Domain}=\mleft\lbrace x|x\in R,-\infty\leq x\leq\infty\mright\rbrace`
`\text{Range}=\lbrace y|y\in R,0\leq y\leq\infty\rbrace`

Values of domain and range all are Real numbers only.