Practice problem
What is the range of f(x)=x2+1f(x) = \sqrt{x^2+1}f(x)=x2+1?
[0,∞)[0,\infty)[0,∞)
(0,∞)(0,\infty)(0,∞)
(1,∞)(1,\infty)(1,∞)
[1,∞)[1,\infty)[1,∞)
Type a concept, like “slope” or “photosynthesis”.