How do you find the domain and range of #f(x) = 2x - 8#?

1 Answer
Jul 25, 2017

Answer:

#(-oo,oo)# for both domain and range

Explanation:

Since the equation is a line, all values of #x# produce a real value of #y#.

As #x# approaches #oo#, #y# approaches #oo#.

As #x# approaches #-oo#, #y# approaches #-oo#.

Since the equation does not have fractions or radicals, both the domain and range take on all real values.