A three-inch line segment is dilated by a scale factor of 6 and centered at its midpoint. What is the length of its image?

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Answer 1 · 2018-05-23T19:52:22

#color(blue)(18 " inches")#

If I am reading this correctly the centre of dilation is #11/2# inches from each end of the line. Increasing by a scale factor 6 gives:

Left side:

#6xx1 1/2=9#

Right side:

#6xx1 1/2=9#

New length:

#9+9=18#inches.