Question 4 Measure the length of your selected line segment using the tools available in GeoGebra. Include measurements for both the image and the
prelmage, and enter your values in the table. Compare the measured values with the values you calculated in Question 3. Are the values equal?
Type an X in the appropriate box.

Edmentum.

Step-by-step explanation:

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given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

here is a big fat