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anonymous
 one year ago
Which of these ordered pairs could not be a dilation of (8, 4)?
(2, 1)
(2, 2)
(16, 8)
(4, 2)
What scale factor is shown in the graph?
in the comments
An image has point W'(7, 3), and the preimage has point W(21, 9). This is an enlargement.
True
False
anonymous
 one year ago
Which of these ordered pairs could not be a dilation of (8, 4)? (2, 1) (2, 2) (16, 8) (4, 2) What scale factor is shown in the graph? in the comments An image has point W'(7, 3), and the preimage has point W(21, 9). This is an enlargement. True False

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Owlcoffee @Chumpian

freckles
 one year ago
Best ResponseYou've already chosen the best response.1so I guess the example didn't click?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1\[(2,1)=(8a,4a) \text{ holds if } (2,1) \text{ is a dilation of } (8,4) \\ \text{ this means we should find the same } a \text{ such that } 2=8a \text{ and } 1=4a \] and if we don't than it is not a dilation

freckles
 one year ago
Best ResponseYou've already chosen the best response.1but if we do then it is

freckles
 one year ago
Best ResponseYou've already chosen the best response.1solving both of those give a=1/4 since both give the same a value then (2,1) is a dilation of (8,4)

freckles
 one year ago
Best ResponseYou've already chosen the best response.1\[(2,2)=(8a,4a)\] see if you get the same a here for both equations 2=8a and 2=4a

freckles
 one year ago
Best ResponseYou've already chosen the best response.1a way to look at the next question... dw:1436979028825:dw dw:1436979032167:dw which is the longer line the image or the image after the dilation?
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