Question

Geo help :(

Answer 1

@satellite73

Answer 2

@SithsAndGiggles

Answer 3

Capital R is a reflection, and lowercase r is a rotation, from the looks of it.

For example, \(R_{y=x}\) likely indicates a reflection across the line \(y=x\), and \(r_{(270^\circ,P)}\) probably means a rotation about point \(P\) by \(270^\circ\) (clockwise or counterclockwise, I'm not sure... I'll assume counterclockwise).

Answer 4

You can see right away that (b) and (c) aren't correct, since (b) would give you triangle in the fourth quadrant. (c) would give you the same thing as (b).

For options (a) and (d), I think the circle in between the reflection/rotation means composition, which basically means, "do one transformation, then the other." I'm not sure as to the order, though, but I would think left-to-right is the way to read it.

Answer 5

Capital R is a reflection, and lowercase r is a rotation, from the looks of it.

For example, \(R_{y=x}\) likely indicates a reflection across the line \(y=x\), and \(r_{(270^\circ,P)}\) probably means a rotation about point \(P\) by \(270^\circ\) (clockwise or counterclockwise, I'm not sure... I'll assume counterclockwise).

Answer 6

And with (d), a reflection across \(y=x\) and a \(180^\circ\) rotation gives you the same triangle, so (a) is the answer.

Answer 7

Point P? There is no point P?

Answer 8

Point \(P\) is the origin.