Question

What is the domain of `y=e^-x-10`?

Answer 1

`(x|x " is " RR}` or `(-oo,oo)`

Explanation:

Domain has no restrictions so it is all real numbers:

`(x|x " is " RR}` or `(-oo,oo)`

Range is more interesting, it has a asymptote at -10 so it gets closer and closer to -10 but never gets there so it is:

`{y|y > -10}` or `(-10, oo)`

graph{e^(-x)-10 [-13.58, 26.42, -12.96, 7.04]}