Suppose f(x)=x^2-4.Find the graph of f(3x)

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Which of the following tables represents exponential functions?

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).