Answer:
if you need anything else just comment
Explanation:
4k <_ 4 = numerical form
4k/4 <_ 4/4
k <_ 1 = work to solve
on number line there is 0,1,2. 1 has a circle that is filled in and arrow pointing towards 0. = graphed on number line
set notation = {k(vertical bar)k<_1}
interval notation = (-infinity, 1]