Question

How do you find the domain and range of `y = 2x - 7`?

Answer 1

Domain `{x|x " is " RR}`
Range `{y|y " is " RR}`

Explanation:

`y=2x-7` is the equation of a line with slope `m=2`, the domain and range of any line with `m!=0` and `m!=O/` is all real numbers:

Domain `{x|x " is " RR}`
Range `{y|y " is " RR}`