5 ( x + 7 ) +2 ( y - 1 ) when x=7 and y=2
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Given:
A figure of dilation and the center of dilation is O.
To find:
The value of y.
Solution:
The distance between center and vertex of image (d') is proportional to the distance between center and the corresponding vertex of original figure (d).
Where, k is the scale factor or constant of proportionality.
So, the scale factor for the given dilation is
We know that,
Divide both sides by 9.
Therefore, the value of y is 12.
Sum means add
the number is x
13 divided by a number is 13/x
the number divided by the number is x/13
so
also can be simplified to
or
translated it is where x is the number
the number is x
13 divided by a number is 13/x
the number divided by the number is x/13
so
also can be simplified to
translated it is