What are the domain and the range of this graph?
a) The domain is {x∈R|x≤0} and the range is {y∈R|y≤0}.
b) The domain is {x∈R|x≤0} and the range is {y∈R|y≥0}.
c) The domain is {x|x∈R} and the range is {y∈R|y≤0}.
d) The domain is {x|x∈R} and the range is {y∈R|y≥0}.
