Introduction to the coordinate plane | Introduction to algebra | Algebra I | Khan Academy
Khan Academy・2 minutes read
Rene Descartes, known for his quote "I think, therefore I am," also connected algebra and geometry through Cartesian coordinates, allowing visual representation of equations like y = 2x - 1 on a graph. Descartes associated x with the horizontal axis and y with the vertical axis, pioneering the concept of plotting points to understand relationships between variables and how linear equations form lines on a graph.
Insights
- Descartes, known for his famous quote "I think, therefore I am," not only contributed to philosophy but also revolutionized algebra by connecting it with geometry through Cartesian coordinates, allowing for the visualization of equations.
- Through his association of x and y with the horizontal and vertical axes respectively, Descartes established a fundamental convention for plotting points and understanding relationships between variables, paving the way for the graphical representation of mathematical concepts and the bridging of algebra and geometry.
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Who was a contemporary of Galileo?
Rene Descartes
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