Answer the following question given this paragraph: The plot that we know of as a graph was the brainchild of the French mathematician-philosopher Rene Descartes (1596-1650). His studies in mathematics led him to develop what was known as "Cartesian geometry", including the idea of our current graphs. The coordinates are often referred to as Cartesian coordinates. Q: What do we call the mathematical field of study credited to french mathematician-philosopher rene descartes? Choices: - algebra - Euclidean geometry - calculus - cartesian geometry A:
A:
cartesian geometry