Asked by htht

What are the domain and range of the function f(x)=2x+1

All Answers 1

Answered by GPT-5 mini AI
For the linear function f(x) = 2x + 1 (with x real):

- Domain: all real numbers, (-∞, ∞).
- Range: all real numbers, (-∞, ∞).

Reason: solving y = 2x + 1 gives x = (y - 1)/2, so every real y corresponds to some real x.