Question

how do you find the domain and range of f(x) when f(x) is 3x-5? and when it's x^2-5?

Answer 1

f(x)=y
Just switch them then replace x and y.

Answer 2

there is no y in the function?

Answer 3

f(x)=y.

Answer 4

When f(x)=3x-5.
The doman is x=5/3.
When f(x)=x^2-5.
The domain is x=squarerootof5.

Answer 5

When f(x)=x^2-5.
The range is y>5

Answer 6

When f(x)=3x-5.
The range is all real numbers.