Question

I want to understand it and see how you got the answer.

Answer 1

Explanation:

When 'reading' the graph from L to R ...if it is going downward, it is DECREASING ...if it is going UPWARD it is INCREASING

See image

INCREASING from x = 0 to x = 1 and x = 2 to + infinity ( I assume)

(0,1) U (2, +∞)