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# Formula related to Co-Ordinate Geometry

## What is Co-ordinate Geometry? The columns of the grid are given the letters A, B, C etc. The rows are numbered 1,2,3 etc. from the top. We can see that the X3 is in the box; That is, column D, row 3.

D and 3 are called the coordinates of the box. It has two parts: row and column. Each row has many boxes and each column has several boxes. But by having both, we can find a single box, where the row and column intersect.

## Co-Ordinate Geometry Regulatory Symbol Rules

 Point position x-regulator sign y-regulator sign Regulatory Symbol In the first leg + + (+,+) Second leg – + (-,+) In the third leg – – (-,-) In fourth leg + – (+,-)

### Co-ordinate geomerty.

(1) Regulatory sign rules = (0,0)

(2) What is the x-k regulator called? = abscissa

(3) What is the regulator of y ?=Grade

(4) Regulator or x coordinate of x axis = x, 0

(5) Regulator or coordinate of y axis = 0, y

(6) The formula for the distance from the point of origin = √ x² + y²

(7) Distance formula = √ (x1-x2) ² + (y1-y2) ²

(8) On the x-axis, y = 0.

(9) x = 0 on the y-axis