Question

Use the graph to determine open intervals

Answer 1

See, please, this decision:
a) the function is increasing if x∈(-oo;2)∪(3;4); to the additional, y∈(-oo;1)∪(0;1)4
b) the function is decreasing if x∈(2;3)∪(4;+oo); to the additional, y∈(1;0)∪(1;-oo);
c) no intervals;

(a) Select the correct choice...
A. the function is increasing on the intervals x∈(-oo;2), (3;4)