Discover answers to your questions with Westonci.ca, the leading Q&A platform that connects you with knowledgeable experts. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

Which transformations could be performed to show that:

A. A reflection over the [tex]$x$[/tex]-axis, then a dilation by a scale factor of 3
B. A reflection over the [tex]$x$[/tex]-axis, then a dilation by a scale factor of [tex]$\frac{1}{3}$[/tex]
C. A [tex]$180^{\circ}$[/tex] rotation about the origin, then a dilation by a scale factor of 3
D. A [tex]$180^{\circ}$[/tex] rotation about the origin, then a dilation by a scale factor of [tex]$\frac{1}{3}$[/tex]

Sagot :

To determine which set of transformations match the required transformations involving reflections, rotations, and dilations, we will analyze each transformation step-by-step. By examining the effect of each transformation, we can then identify which sequences of transformations are viable.

### Case 1: Reflection over the x-axis, then dilation by a scale factor of 3
1. Reflection over the x-axis: This transformation changes a point [tex]\((x, y)\)[/tex] to [tex]\((x, -y)\)[/tex].
2. Dilation by a scale factor of 3: This transformation scales the coordinates by 3, changing [tex]\((x, -y)\)[/tex] to [tex]\((3x, -3y)\)[/tex].

So the transformation [tex]\((x, y) \rightarrow (3x, -3y)\)[/tex] is achieved.

### Case 2: Reflection over the x-axis, then dilation by a scale factor of [tex]\(\frac{1}{3}\)[/tex]
1. Reflection over the x-axis: This transformation changes a point [tex]\((x, y)\)[/tex] to [tex]\((x, -y)\)[/tex].
2. Dilation by a scale factor of [tex]\(\frac{1}{3}\)[/tex]: This transformation scales the coordinates by [tex]\(\frac{1}{3}\)[/tex], changing [tex]\((x, -y)\)[/tex] to [tex]\((\frac{x}{3}, -\frac{y}{3})\)[/tex].

So the transformation [tex]\((x, y) \rightarrow (\frac{x}{3}, -\frac{y}{3})\)[/tex] is achieved.

### Case 3: 180-degree rotation about the origin, then dilation by a scale factor of 3
1. 180-degree rotation about the origin: This transformation changes a point [tex]\((x, y)\)[/tex] to [tex]\((-x, -y)\)[/tex].
2. Dilation by a scale factor of 3: This transformation scales the coordinates by 3, changing [tex]\((-x, -y)\)[/tex] to [tex]\((-3x, -3y)\)[/tex].

So the transformation [tex]\((x, y) \rightarrow (-3x, -3y)\)[/tex] is achieved.

### Case 4: 180-degree rotation about the origin, then dilation by a scale factor of [tex]\(\frac{1}{3}\)[/tex]
1. 180-degree rotation about the origin: This transformation changes a point [tex]\((x, y)\)[/tex] to [tex]\((-x, -y)\)[/tex].
2. Dilation by a scale factor of [tex]\(\frac{1}{3}\)[/tex]: This transformation scales the coordinates by [tex]\(\frac{1}{3}\)[/tex], changing [tex]\((-x, -y)\)[/tex] to [tex]\((- \frac{x}{3}, - \frac{y}{3})\)[/tex].

So the transformation [tex]\((x, y) \rightarrow (- \frac{x}{3}, - \frac{y}{3})\)[/tex] is achieved.

### Conclusion
All the given transformations (Cases 1, 2, 3, and 4) are preserved through the steps described, and they all match the required effect.

Therefore, the transformations that could be performed are:
1. A reflection over the x-axis, then a dilation by a scale factor of 3.
2. A reflection over the x-axis, then a dilation by a scale factor of [tex]\(\frac{1}{3}\)[/tex].
3. A 180-degree rotation about the origin, then a dilation by a scale factor of 3.
4. A 180-degree rotation about the origin, then a dilation by a scale factor of [tex]\(\frac{1}{3}\)[/tex].

These transformations adequately achieve the desired results, so the list of viable transformation sequences is [tex]\([1, 2, 3, 4]\)[/tex].
We hope this was helpful. Please come back whenever you need more information or answers to your queries. We hope our answers were useful. Return anytime for more information and answers to any other questions you have. We're dedicated to helping you find the answers you need at Westonci.ca. Don't hesitate to return for more.