I assuming it can be an equation of an arbitrary choice. And I am further assuming that by "equation" they mean a function.
so I choose a simple f(x)=|x|, then
(1)
reflected (around the x axis here)
f(x) = -|x|
vertically shifted 2/3
f(x) = -|x|+2/3
and 1/2 units to the right
f(x) = -|x-1/2|+2/3 (final answer)
(2)
f(x) = |x-4| (final answer)