Ineed freinds can anyone pls me with these

answer:

with what?

explanation:

Part A. I believe the scale factor of the dilation is 1/2 because since P'Q'R' becomes smaller than PQR, the scale factor must be less than 1. Also, the coordinates P(8,0) and P'(4,0) when the x coordinate of P is multiplied by something to get 4, we find that the something is 1/2 (8 times ? = 4).

Part B.- P''(-4,0)  Q''(-3,1)    R''(1,-2)

Part C: First, find the distance between P'' and Q'' using the distance formula:

the sq. rt (-3 + 4)^2 + (1 - 0)^2 = the sq. rt of 1 + 1 or the sq. rt of 2

Now find the distance between R'' and Q'':

the sq. rt (-3 - 1)^2 + (1 + 2)^2 = the sq. rt of 16 + 9 = the sq. rt of 25 or 5.

Now find the distance between P and Q:

the sq. rt of 4 + 4 = the sq rt of 8

Now find the distance between Q and R:

the sq. rt 64 + 36 = the sq. rt of 100 = 10

Now see if the side lengths are in equal proportion:

5/10      the sq. rt of 8/the sq. rt of 2

0.5             2

The two triangles are not congruent.