Select the coordinates A′ and B′ after dilation of the line segment AB with a scale factor of 13 , centered at the origin where the endpoints are A(−6,3) and B(−12,9) .(1 point) Responses A′(−6,3) and B′(−4,3) upper A prime left parenthesis negative 6 comma 3 right parenthesis and upper B prime left parenthesis negative 4 comma 3 right parenthesis A′(−18,9) and B′(−36,27) upper A prime left parenthesis negative 18 comma 9 right parenthesis and upper B prime left parenthesis negative 36 comma 27 right parenthesis A′(−2,1) and B′(−12,9) upper A prime left parenthesis negative 2 comma 1 right parenthesis and upper B prime left parenthesis negative 12 comma 9 right parenthesis A′(−2,1) and B′(−4,3)

1 answer

To find the coordinates \( A' \) and \( B' \) after dilation of the line segment \( AB \) with a scale factor of \( 13 \) centered at the origin, we will multiply the coordinates of points \( A \) and \( B \) by the scale factor.

The original coordinates are:

  • \( A(-6, 3) \)
  • \( B(-12, 9) \)

Now applying the dilation:

  1. For point \( A \): \[ A' = (x_A \cdot k, y_A \cdot k) = (-6 \cdot 13, 3 \cdot 13) = (-78, 39) \]

  2. For point \( B \): \[ B' = (x_B \cdot k, y_B \cdot k) = (-12 \cdot 13, 9 \cdot 13) = (-156, 117) \]

Thus, the coordinates after dilation are:

  • \( A'(-78, 39) \)
  • \( B'(-156, 117) \)

None of the given response options match these calculated coordinates. Please check the responses or provided scale factor and points once again, as it seems they do not correspond correctly.