Given an element (a) of set A, where A is the intersection of sets B and C, provide a true statement about (a) in terms of sets B and C.
An element existing in the intersection of two sets implies the existence of the element in each of the intersecting sets. Therefore, (a) is an element of set B, and (a) is an element of set C.
Complete the following sentence: The product of two negative numbers is a [blank] number.
The product of two negative numbers is a positive number.
Describe a function y = f(x) which satisfies the following: x = 1 implies y = 0, defined only for positive x values, and the limit as x approaches infinity is infinity.
y = ln(x)