Which of the following equations ARE in slope-intercept form? y = 2
y= -63 +2
y = 12 - 3.0
23 - 5y = 9
62 = 8y
y = 5

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:

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value