In each graph, the two given polygons are similar. Write …

Mathematics Questions

In each of the following graphs, the two given polygons are similar. Write precisely a single dilation (coordinates of center and coefficient) by which the image (labeled with primed letters) was obtained. Will Give Brainiest!!!!!

Short Answer

Dilation is a geometric transformation that changes the size of a figure while maintaining its shape, defined by a scale factor. In the given example, a scale factor of 1/3 and a center at (0, 0) will reposition the vertices of polygon MNPQ closer to the center by one-third of their distance, resulting in a smaller polygon M’N’P’Q’. The new coordinates can be calculated by multiplying the original coordinates by the scale factor.

Step-by-Step Solution

Step 1: Understand Dilation

Dilation is a transformation that alters the size of a geometric figure while retaining its shape. This transformation is defined by a scale factor, denoted as ‘k’, which determines how much larger or smaller the new image will be compared to the original figure. For example, if the scale factor is greater than 1, the figure enlarges, while a factor between 0 and 1 reduces its size.

Step 2: Identify the Scale Factor and Center

In this case, we are given a scale factor of 1/3 and a center of dilation at coordinates (0, 0). This means that each point of the original polygon MNPQ will be repositioned closer to the center (0, 0) by one-third of its original distance. The scale factor affects every vertex of the polygon, creating a proportional image, or M’N’P’Q’.

Step 3: Calculate the New Coordinates

To find the new positions of the vertices after dilation, use the formula: new point = center + (original point – center) x scale factor. For example, if the original point is at coordinates (x, y), the new coordinates after applying the scale factor would be computed as follows:

  • New x-coordinate = (1/3) * x
  • New y-coordinate = (1/3) * y

By applying this formula to each vertex of polygon MNPQ, you’ll successfully transform it into the smaller polygon M’N’P’Q’.

Related Concepts

Dilation

A transformation that alters the size of a geometric figure while retaining its shape, defined by a scale factor.

Scale Factor

A numerical value that determines how much larger or smaller a figure will be when undergoing dilation, affecting its distance from a center point.

Center Of Dilation

A fixed point in the plane from which the distances to the points of the figure are scaled, determining the repositioning of the figure during dilation.

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