How do you find the domain and range of f(x) = 3x + 1 ?

1 Answer
May 10, 2017

See below

Explanation:

The domain of a function is all possible values it can take on for x, a simple polynomial like f(x) = 3x + 1 can take on all real numbers so it's domain is RR, so this means there is no real number which makes this function undefined.

Similarly the range is also RR, because the y value of the function can take on all real values, this can be seen from the graph as the line infinitly spans the y axis.

graph{3x+1 [-10, 10, -5, 5]}