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anonymous
 one year ago
Sophia is dilating a figure. One of her preimage points with coordinates (3, 5) has an image with coordinates (9, 15). If one of the other image points has coordinates (3, 1), what are the coordinates of its preimage point?
(9, 3)
(1,)
(1, 3)
(3, 1)
Which of these ordered pairs could not be a dilation of (8, 4)?
(2, 1)
(2, 2)
(16, 8)
(4, 2)
anonymous
 one year ago
Sophia is dilating a figure. One of her preimage points with coordinates (3, 5) has an image with coordinates (9, 15). If one of the other image points has coordinates (3, 1), what are the coordinates of its preimage point? (9, 3) (1,) (1, 3) (3, 1) Which of these ordered pairs could not be a dilation of (8, 4)? (2, 1) (2, 2) (16, 8) (4, 2)

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freckles
 one year ago
Best ResponseYou've already chosen the best response.0hey so 3*what=9 5*what=15

freckles
 one year ago
Best ResponseYou've already chosen the best response.0\[3 \cdot (3,5)=(3 \cdot (3),3(5))=(9,15)\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.0so what is 3 times (3,1)

freckles
 one year ago
Best ResponseYou've already chosen the best response.0\[3 \cdot (3,1) =(3 \cdot 3,3 \cdot 1)=?\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.0\[a \cdot (8,4)=(8a,4a) \]

freckles
 one year ago
Best ResponseYou've already chosen the best response.0(2, 1) (2, 2) (16, 8) (4, 2) for which of these choices do you get a different a value that is : for example: let's look at the first point (2,1) (8a,4a)=(2,1) 8a=2 gives a=1/4 4a=1 gives a=1/4 since both of these a's are the same than (2,1) is a dilation of (8,4)

freckles
 one year ago
Best ResponseYou've already chosen the best response.0try the others you want both a's to be the same

freckles
 one year ago
Best ResponseYou've already chosen the best response.0what do the dots mean? does that mean you don't understand the example?
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