![]() ![]() The length of the hypotenuse of a right triangle can be found using the Pythagorean theorem, which states that the square of the length of the hypotenuse equals the sum of the squares of the lengths of the other two sides. ![]() An easy way to remember the order of operations is that we read from left to right, so the first line is the horizontal line or the x-axis, which also comes first alphabetically. In geometry, a hypotenuse is the longest side of a right-angled triangle, which is the side opposite the right angle. The horizontal line here is referred to the x-axis and values that come first in ordered pairs are plotted along this line while the vertical line is known as the y-axis, where the second number of ordered pairs is plotted. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere. Simply put, though, the Cartesian plane is really just two number lines where one is vertical and the other horizontal and both form right angles with one another. Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Derived from the Pythagorean Theorem, the distance formula is used to find the distance between two points in the plane. Points on the cartesian plane are called "ordered pairs," which become extremely important when illustrating the solution to equations with more than one data point. Distance btw points Midpoint btw points Slopes Slope of parallel. Cartesian planes are formed by two perpendicular number lines intersect. It provides a connection between algebra and geometry through graphs of lines and curves. The Cartesian plane is named after the mathematician Rene Descartes who originally came up with the concept. The Cartesian Plane is sometimes referred to as the x-y plane or the coordinate plane and is used to plot data pairs on a two-line graph. ![]()
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