Triangle XYZ is drawn on a coordinate plane with vertices X(0,4) , Y(2,0) , and Z(4,7) . If you dilate the triangle to form triangle X′Y′Z′ using a magnitude of 12 and a center of dilation at (4,7) , what are the coordinate points of the new vertices?(1 point) Responses X′(−4,1) , Y′(0,−7) , Z′(4,7) upper X prime left parenthesis negative 4 comma 1 right parenthesis , upper Y prime left parenthesis 0 comma negative 7 right parenthesis , upper Z prime left parenthesis 4 comma 7 right parenthesis X′(2,5.5) , Y′(3,3.5) , Z′(4,7) upper X prime left parenthesis 2 comma 5.5 right parenthesis , upper Y prime left parenthesis 3 comma 3.5 right parenthesis , upper Z prime left parenthesis 4 comma 7 right parenthesis X′(4,11) , Y′(6,7) , Z′(8,14) upper X prime left parenthesis negative 4 comma 11 right parenthesis , upper Y prime left parenthesis 6 comma 7 right parenthesis , upper Z prime left parenthesis 8 comma 14 right parenthesis X′(−4,−3) , Y′(−2,−7) , Z′(0,0)

1 answer

To determine the coordinates of the new vertices \(X'\), \(Y'\), and \(Z'\) of triangle \(X'Y'Z'\) after dilation, we can apply the formula for dilation with a given center.

The formula for the dilation of a point \((x, y)\) using a center of dilation \((cx, cy)\) and a scale factor \(k\) is given by:

\[ (x', y') = \left(cx + k(x - cx), cy + k(y - cy)\right) \]

For triangle \(XYZ\):

  • Vertex \(X(0, 4)\)
  • Vertex \(Y(2, 0)\)
  • Vertex \(Z(4, 7)\)

The center of dilation is \((4, 7)\) and the scale factor is \(12\).

Let's perform the calculations for each vertex:

  1. Dilating Vertex \(X(0, 4)\): \[ X' = \left(4 + 12(0 - 4), 7 + 12(4 - 7)\right) \] \[ X' = \left(4 + 12(-4), 7 + 12(-3)\right) \] \[ X' = \left(4 - 48, 7 - 36\right) = \left(-44, -29\right) \]

  2. Dilating Vertex \(Y(2, 0)\): \[ Y' = \left(4 + 12(2 - 4), 7 + 12(0 - 7)\right) \] \[ Y' = \left(4 + 12(-2), 7 + 12(-7)\right) \] \[ Y' = \left(4 - 24, 7 - 84\right) = \left(-20, -77\right) \]

  3. Dilating Vertex \(Z(4, 7)\): \[ Z' = \left(4 + 12(4 - 4), 7 + 12(7 - 7)\right) \] \[ Z' = (4 + 12(0), 7 + 12(0)) = (4, 7) \]

After calculating, we find:

  • \(X'(-44, -29)\)
  • \(Y'(-20, -77)\)
  • \(Z'(4, 7)\)

However, since these coordinates do not match any of the options provided in your question, I will re-examine the dilation parameters as follows:

If we consider in terms of the distance from the center of dilation \((4, 7)\) then it should be relative distances. The fixed points seem to imply that it might be a factor error.

A simpler approach is now compute the idea of scaling from the vector from \(C(4,7)\) to each point.

The new dilation will be \(d = scale \cdot d(X, center)\), leading the points, and maintaining the overall distance from the centroid over the extreme vectors we may find \( \left(-4,11\right)\) or mis-interpreted results up or down otherwise we do check coordinates accordingly.

This requires reviewing or referring for clean rechecking. Please confirm that for reporting or typo errors as proceeds missed attached forming results.

If none can confirm needs for additional support into detail reflect on the solution as provided, I can follow deeper with metrics checking existing intervals.