On the graph below are three points X, Y, and Z. Write the coordinates for the given dilation.



D O, -½ of Y =

(-3/2, -1)
(3/2, 1)
(5/2, 3/2)

On the graph below are three points X Y and Z Write the coordinates for the given dilation D O of Y 32 1 32 1 52 32 class=

Respuesta :

ANSWER

[tex]( - \frac{3}{2} , - 1)[/tex]

EXPLANATION

From the graph, the coordinates of Y are:

[tex](3,2)[/tex]

We want to find the image of this point after a dilation by a scale factor of -½ about the origin.

The rule for the dilation is :

[tex](x,y)\to( - \frac{1}{2} x, - \frac{1}{2} y)[/tex]

To find the coordinates of Y', we plug the coordinates of Y.

[tex]Y(3,2)\to \: Y'( - \frac{1}{2} (3), - \frac{1}{2}(2) )[/tex]

[tex]Y(3,2)\to \: Y'( - \frac{3}{2}, - 1)[/tex]

The first choice is correct.