geometry ........help?

2 ⤊

geometry ........help?

A segment with endpoints (2, -1) and (4, 2) is dilated to the image segment with endpoints (4, -2) and (8, 4). What is the scale factor for the dilation?

A.2

B.4

C.6

D.8

2007-03-26 02:16:13 · 2 answers · asked by MEB 2 in Science & Mathematics ➔ Mathematics

2 answers

length of original seg.=sq.rt 13
& the length of dilated seg.=2 sq.rt.13
therefore ans.A i.e 2

2007-03-26 02:25:15 · answer #1 · answered by SS 2 · 0⤊ 0⤋

For the first set of points, the difference is (2,3)

For the second set, the difference is (4,6)

Therefore it is answer A, as the second set is double that of the first set i.e. it has been dilated by a factor of 2

2007-03-26 09:23:58 · answer #2 · answered by Doctor Q 6 · 2⤊ 0⤋