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https://www.mathplanet.com/.../transformation-using-matrices

A vector could be represented by an ordered pair (x,**y**) but it could also be

represented by ... the figure x+3 and **y**+**2** we simply add 3 to each x-coordinate

and **2** to each **y**-coordinate. ... for a **reflection** in the **origin**. [−100−1]. for a

**reflection** in the **line y**=x. [0110]. Example. We want to create a **reflection** of the

vector in the x-**axis**.

mathworld.wolfram.com/Ellipse.html

(the foci) separated by a distance of **2c** ... **Reflections** not passing **through** a focus

will be tangent to a confocal ... Let an ellipse lie **along** the x-**axis** and find the

equation of the figure (1) where F_1 ... sqrt((x-c)^**2**+**y**^**2**), = -1/(4a)(x^**2**+2xc+c^**2**. (

4) ... from a vertical **line** known as the conic section directrix, where the ratio is <1

.

ncert.nic.in/ncerts/l/ieep203.pdf

Apr 16, 2018 **...** Cartesian system. Coordinate **axes**. **Origin**. Quadrants. Abscissa ... In the

Cartesian plane, the horizontal **line** is called the x-**axis** and the vertical ...

Abscissa or the x-coordinate of a point is its distance from the **y**-**axis** and the .... If

the coordinates of the two points are P (–**2**, 3) and Q(–3, 5), then (abscissa of P).

https://www.math.ucla.edu/~radko/circles/.../Handout-1254-1265.pdf

**2**. Let's **plot** several points whose coordinates are given: (a) **Plot** point F with

address (1, 4);. (b) **Plot** ... The **y**-**axis**. The horizontal **line** 5 units above the ...

Reflect the points below and find the address of the **reflection** of each point:

Depot ... (b) Does the **y**-coordinate change when you reflect a point **across** the x-

**axis**? If so,.

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