Question

Does the graph of the function y=3x−1−−−−√3
show that the function is increasing or decreasing?

Option 1: increasing

Option 2: decreasing

(1 point)

Answer 1

Option 1: increasing.

Reason: y = √(3x − 1) has derivative y' = 3 / (2√(3x − 1)) which is positive on its domain (x ≥ 1/3), so the function is increasing.