Question

Help! http://prnt.sc/cyx0f5

http://assets.openstudy.com/updates/attachments/580fcb7de4b012711f1beeb2-milo123-1477430183138-screenshot20161025at4.08.46pm.png

And here's what I have so far

Part A:
Dilation is a type of transformation that changes the size but not the shape of a figure. The scale factor of the dilation that transforms triangle PQR to triangle P'Q'R' is 1/2.
1/2 (8,0) = (4,0)
1/2 (6,2) = (3,1)
1/2 (-2,-4) = (-1,-2)

Answer 1

I'm sorry I don't have time now :( Please tag one of the other users

Answer 2

Here is what I've done so far @Directrix:::::

Part A:
Dilation is a type of transformation that changes the size but not the shape of a figure. The scale factor of the dilation that transforms triangle PQR to triangle P'Q'R' is 1/2.
1/2 (8,0) = (4,0)
1/2 (6,2) = (3,1)
1/2 (-2,-4) = (-1,-2)

Part B:

If P'Q'R' is reflected in y axis x coordinate will be same but y coordinate will be negative.
P' ( 4,0)
Q' (3,-1)
R' (-1,2

Answer 3

finally P (8,0) you have (0,8)

Answer 4

When you reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is transformed into its opposite. The reflection of the point (x, y) across the y-axis is the point (-x, y).

http://www.regentsprep.org/regents/math/geometry/gt1/reflect.htm

Answer 5

also check your R

Answer 6

I am not good on translations but am wondering if this is a true statement:

If P'Q'R' is reflected in y axis x coordinate will be same but y coordinate will be negative.

Answer 7

dilation changes the size not the shape CORRECT!1

Answer 8

reflection across x-axis x the same y to -y
reflection across y-axis y the same x to -x

Answer 9

@Directrix what you wrote is correct (did not check the link)

Answer 10

Okay.

So, @milo123 needs to change this sentence to read what?

If P'Q'R' is reflected in y axis x coordinate will be same but y coordinate will be negative.

Answer 11

no y axis so x changes

Answer 12

This? True or False?

If P'Q'R' is reflected in y axis y coordinate will be same but x coordinate will be negative.

Answer 13

yes true