Katerina incorrectly says the ratio y/x is 1/10. Which error did Katerina likely make?

She divided 30 by 1/10, Then rather than putting 300 down as the answer She put 1/10.

Step-by-step explanation: if you divide 30 by 1/10 you get 300, She may have put 1/10 because you need to put fractions in the blank squares.

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:

one that is bigger than 3 1/2