When it says varies directly, it means that y and x are going to be on opposite sides of the equals sign and that there is a constant, k,
y=kx
Plug in (5,100)
100=k(5)
K=20
the answer to your question is B.) 12x
There is a app called photo mathyou should use it
So based on the given illustration above of different graphs, the graph that depicts a complex number with i as the imaginary part would be the last one, graph D. <span>i as the imaginary part is the same thing as 1i, which makes this one as the answer. Hope this answers your question. </span>
