Question

please help

Answer 1

What is the coordinate notation for reflections?

Answer 2

also i need help on 2 more if that is ok with you

Answer 3

Draw a quick Cartesian plane with x & y axes. Plot a random point in quadrant one, say A(1, 4)

Ask yourself "what would be the coordinates of the reflection of point A using the y-axis as a mirror line?"

I hope you were thinking (–1, 4) ... Try a few more for yourself.

Can you see that they all have this pattern:

P(x, y) ➞ P(–x, y)

Well that is the mapping rule for y-axis reflections.

Similar thinking will get this rule for x-axis reflection:

P(x, y) ➞ P'(x, –y)



IF
⠀the y-axis reflection takes place AFTER the slide translation ...
THEN
⠀P(x, y) ➞ P'(x + a, y + b) ➞ P''(–(x + a), y + b) = P''(–x –a , y + b)

IF
⠀the x-axis reflection takes place AFTER the slide translation ...
THEN
⠀P(x, y) ➞ P'(x + a, y + b) ➞ P''(x + a, –(y + b)) = P''(x + a , –y –b)


And i can give you my best.

Answer 4

nvm i need to know what a dilations is

Answer 5

http://www.regentsprep.org/Regents/math/geometry/GT3/Ldilate2.htm

This should help you with that

Answer 6

A dilation is a transformation (notation ) that produces an image that is the same shape as the original, but is a different size. A dilation stretches or shrinks the original figure. The description of a dilation includes the scale factor (or ratio) and the center of the dilation.

Answer 7

thanks

Answer 8

Welcome mate.