The fastest texter in the world is ben cook who typed a 160-letter messge in about 40 seconds. how many letters can ben text in a second? how many letters
in a minute.

Wow that's impressive he can type 4 letters a second and 240 a minute

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:

50.6

step-by-step explanation: