Answer the following with respect to the standard logarithmic function y=logax(a>0,a=1) whose graph is drawn on the usual Cartesian plane.
a. (i) State its domain and range.
b. (ii) Write the coordinates of the point where the graph meets the x-axis.
c. (iii) Write the equation of its vertical asymptote.
d. (iv) List the nature of the graph (increasing/decreasing and concavity) separately for the two cases a>1 and 0<a<1. Explain your answer in one or two sentences for each case.