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Mathematics 18 Online
OpenStudy (benlindquist):

A pre-image and its image have coordinates (-3, -6) and (-1, -2), respectively. Which of the following options represents the scale factor used in the dilation?

OpenStudy (benlindquist):

Choices are 3, 1/3, 2 or 1/2

OpenStudy (welshfella):

-3 * x = -1

OpenStudy (welshfella):

solve for x

OpenStudy (benlindquist):

-3x = -1 then you divide correct

OpenStudy (benlindquist):

so x=3

OpenStudy (welshfella):

divide both sides by -3

OpenStudy (benlindquist):

3/-3x = -1/3

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