Difference between revisions of "Coordinate system"

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The coordinate system is often used in geometry.
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The coordinate system is often used in geometry. The cordinate system is organized to 4 quadrants. In the first quadrant, both (x,y) are positive. In the second quadrant x is negative, while y is positive.In the third quadrant, both (x,y) are negative. Finally, in the fourth quadrant x is positive while y is negative. To find the slope of a line on the coordinate system with points <math>(x_1, y_1); (x_2, y_2)</math> we need to compute <math>\frac{y_2-y_1}{x_2-y_2}</math>. The slope is usually expressed as <math>m</math>. Also, there is the point-slope form which states <math>y=m \cdot x + b</math> for some real numbers b,x,y.
 
 
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Revision as of 22:24, 24 January 2016

The coordinate system is often used in geometry. The cordinate system is organized to 4 quadrants. In the first quadrant, both (x,y) are positive. In the second quadrant x is negative, while y is positive.In the third quadrant, both (x,y) are negative. Finally, in the fourth quadrant x is positive while y is negative. To find the slope of a line on the coordinate system with points $(x_1, y_1); (x_2, y_2)$ we need to compute $\frac{y_2-y_1}{x_2-y_2}$. The slope is usually expressed as $m$. Also, there is the point-slope form which states $y=m \cdot x + b$ for some real numbers b,x,y.