Question

What is the Domain and Range of `y = -2x + 6`?

Answer 1

Because `x` can take any value, the Domain of this equation is the set of all Real Numbers: `{RR}`

Because this is a simple linear transformation, the Range of this equation is also the set of all Real Numbers: `{RR}`

Answer 2

Domain: `(-oo, oo)`
Range: `(-oo, oo)`

Explanation:

`y=-2x+6` => equation of straight line in slope-intercept form:
Since a line extends infinitely in both directions, its domain and the range are all the real numbers.