The coordinates of rectangle ABCD are A(0,0), B(6,0), C(6,4), and D(0,4). If the rectangle were dilated using a magnitude of 3 and center of dilation at (3,0), what would be the corresponding ordered pair to point A?

1 answer

To perform the dilation of point \( A(0,0) \) using a center of dilation at \( (3,0) \) with a magnitude of 3, we can use the dilation formula:

\[ (x', y') = \left( x_c + k(x - x_c), y_c + k(y - y_c) \right) \]

where:

  • \((x, y)\) are the original coordinates of the point,
  • \((x_c, y_c)\) are the coordinates of the center of dilation,
  • \(k\) is the magnitude of the dilation,
  • \((x', y')\) are the coordinates after dilation.

Given:

  • Point \( A \) is \( (0, 0) \).
  • Center of dilation \( C \) is \( (3, 0) \).
  • Magnitude of dilation \( k = 3 \).

Now we can substitute in these values:

  • \( x = 0 \), \( y = 0 \)
  • \( x_c = 3 \), \( y_c = 0 \)

Plugging these into the formula gives us:

\[ (x', y') = \left( 3 + 3(0 - 3), 0 + 3(0 - 0) \right) \]

Calculating \( x' \):

\[ x' = 3 + 3(0 - 3) = 3 + 3(-3) = 3 - 9 = -6 \]

Calculating \( y' \):

\[ y' = 0 + 3(0 - 0) = 0 + 3(0) = 0 \]

Thus, the corresponding ordered pair for point \( A \) after the dilation is:

\[ (-6, 0) \]

So the final result is:

\[ \boxed{(-6, 0)} \]