Polygon EFGH is reflected and dilated to give polygon JKLM. The coordinates of the preimage are (1, 3), (5, 9), (11, 9), and (15, 3). The coordinates of the image are (7, 13), (5, 10), (2, 10), and (0, 13). What is the scale factor of the dilation? Select one:
a. Scale factor = 2
b. Scale factor = 3/4
c. Scale factor = 1/2

d

step-by-step explanation:

given

y + 3 = - 4(x - 2) ← distribute the parenthesis

y + 3 = - 4x + 8 ( subtract 3 from both sides )

y = - 4x + 5 → d

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.