What is the graph of the logarithmic function f(x) = log(x) in the Cartesian coordinate plane, where x represents the input and log(x) represents the corresponding y-value?
+
What is the average score of 30 students if the sum of their scores is 900?
+
What is the median of a set of 7 numbers if the 3rd and 4th numbers are 12 and 15, respectively?