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astraxan [27]
2 years ago
14

Line segment AB has vertices A(-3, 4) and B(1, -2). A dilation centered at the orgin is applied to AB. The image has vertices A(

-1, 4/3) and B(1/3, -2/3). What is tjr scale factor of the dilation?
1. 1/6
2. 1/3
3. 3
4. 6​
Mathematics
1 answer:
bixtya [17]2 years ago
4 0

Answer:

option 2

Step-by-step explanation:

consider the coordinates A (- 3, 4 ) and A' (- 1, \frac{4}{3} )

since the dilatation is centred at the origin, then corresponding coordinates are multiples/ divisors of each other, then image to original gives scale factor.

scale factor = \frac{A'}{A} = \frac{-1}{-3} = \frac{1}{3} and \frac{\frac{4}{3} }{4} = \frac{1}{3}

similarly B (1, - 2 ) and B' (\frac{1}{3}, - \frac{2}{3} )

\frac{\frac{1}{3} }{1} = \frac{1}{3} and \frac{-\frac{2}{3} }{-2} = \frac{1}{3}

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