The diagram shows a football field that represents a geological time scale.

why are no organisms labeled between the end zone and 30 yard line on the left side of the field?

scientists disagree about the fossils from this time period.
scientists have not studied that part of the time scale.
there is very little fossil evidence for this time period.
there are too many fossils to name.

b

step-by-step explanation:

b

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

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