In the lesson, you used the following matrices to create reflections:

Across x-axis: A =
[1 0]
[0 −1]

Across y-axis: B =
[-1 0]
[0 1]

Across line y = x: C =
[0 1]
[1 0]

Across line y = −x: D =
[0 -1]
[-1 0]

All these reflections resulted in figures.

All these reflections resulted in   figures.

Congruent

Find the determinant of each of these:

The determinant of each of these is ___.

-1

Now find the following:

A=1  B= 0 C=0 D=1

Repeat this process for the other three matrices. The product of a reflection matrix and its transpose is the  .

Identity Matrix

Step-by-step explanation:

I took the quiz on edge.

answ9x x 3=

step-by-step explanation:

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation: