find the domain and range


[tex]f(x) = x \times 7[/tex]
[tex]f(x) = x 2 + 5[/tex]
[tex]f(x) = \frac{1}{2x - 3} [/tex]
[tex]y = {x}^{2} + 2x + 1[/tex]
[tex]f(x) = \sqrt{2x - 3} [/tex]