Write the coordinates of the vertices after a dilation with a scale factor of

1
5
,
centered at the origin.
P
'
,
Q
'
,
R
'
,
S
'
,
p = 5, -10
q = 10, -10
r = 10, -5
s = 5, -5

1 answer

To find the coordinates of the vertices after a dilation with a scale factor of \(\frac{1}{5}\) centered at the origin, you can multiply each of the original coordinates by the scale factor.

Given:

  • \(P = (5, -10)\)
  • \(Q = (10, -10)\)
  • \(R = (10, -5)\)
  • \(S = (5, -5)\)

Applying the scale factor \(\frac{1}{5}\):

  1. For point \(P'\): \[ P' = \left(5 \cdot \frac{1}{5}, -10 \cdot \frac{1}{5}\right) = (1, -2) \]

  2. For point \(Q'\): \[ Q' = \left(10 \cdot \frac{1}{5}, -10 \cdot \frac{1}{5}\right) = (2, -2) \]

  3. For point \(R'\): \[ R' = \left(10 \cdot \frac{1}{5}, -5 \cdot \frac{1}{5}\right) = (2, -1) \]

  4. For point \(S'\): \[ S' = \left(5 \cdot \frac{1}{5}, -5 \cdot \frac{1}{5}\right) = (1, -1) \]

So, the coordinates of the vertices after the dilation are:

  • \(P' = (1, -2)\)
  • \(Q' = (2, -2)\)
  • \(R' = (2, -1)\)
  • \(S' = (1, -1)\)