Octagon ABCDEFGH and its dilation, octagon A’B’C’D’E’F’G’H’, are shown on the coordinate plane below.
If the center of dilation is at the origin, by what scale factor was octagon ABCDEFGH dilated?
1/4
1/2
2
4

Question

Octagon ABCDEFGH and its dilation, octagon A’B’C’D’E’F’G’H’, are shown on the coordinate plane below.
If the center of dilation is at the origin, by what scale factor was octagon ABCDEFGH dilated?
1/4
1/2
2
4

anonymous · Answer

attachment

amistre64 · Answer

notice that the smaller one hit the top at 2 and the larger one hits the top at 8

amistre64 · Answer

all linear factors scale the same; which means that we scaled from 2 to 8

2s = 8 when s=4

our "s"cale is 4

anonymous · Answer

thank you! :)

amistre64 · Answer

i spose we could have went the long and tedious route of finding the length of a vertex and its compliment part; but mathikers are lazy by nature :)

anonymous · Answer

lol true that!