Two sailboats had a race. sailboat a travel 40 feet every 5 seconds, and sailboat b traveled 56 feet every 8 seconds. which sailboat won the race, and how fast was it going?

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:

if x = 1, then the answer is 3.5