Question

How do you find domain and range? what what variable do you use?

Answer 1

Domain: All the inputs
Range: All the outputs
inputs are usually given the name x and graphed on the horizontal axis
outputs are usually given the name y and graphed on the vertical axis

Answer 2

And if they give you ordered pairs like (2, 4) (1,2) (5, 8)
the first number in each ordered pair is an input and the second number is an output.

Answer 3

ok so how about e^x+2 +1