Plz
triangle pqr is transformed to triangle p'q'r'. triangle pqr has vertices p(8, 0), q(6, 2), and r(−2, −4). triangle p'q'r' has vertices p'(4, 0), q'(3, 1), and r'(−1, −2). plot triangles pqr and p'q'r' on your own coordinate grid. part a: what is the scale factor of the dilation that transforms triangle pqr to triangle p'q'r'? explain your answer. (4 points) part b: write the coordinates of triangle p"q"r" obtained after p'q'r' is reflected about the y-axis. (4 points) part c: are the two triangles pqr and p''q''r'' congruent? explain your answer. (2 points)

Step-by-step explanation:

A) Triangle PQR is transformed into triangle P'Q'R' by a scale of 1/2 because

1/2 (8,0) = (4,0) ; 1/2(6,2) =(3,1) ; 1/2(-2,-4) = (-1,-2)

B) When P'Q'R' reflected across the y axis, the y values don't change, the x values become the opposites, so (-4,0), (-3,1), (1,-2)

C) They are similar, but not congruent. The side length of P''Q''R'' is only half of the side length of PQR. A dilation produces congruent shapes

the answer will be

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb