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

1 Answer
Dec 5, 2017

See a solution process below:

Explanation:

The equation x = -7 is a vertical line where for each and every value of y, x equals -7.

There Domain is the scope of values the variable x can have. In this equation the only value x can have is -7. Therefore the Domain of this equation is {-7}

The Range is the set of values the y variable can be. In this case the y variable can be any and all Real Numbers. Therefore the Range for this function is the set of all Real Numbers: {RR}