Translation 4 Units Right and 1 Unit Down

Oct 13, 2025 by talynt.org 53 views

Understanding the Problem

To create a rule for $$g$$ that represents a translation 4 units right and 1 unit down, followed by a vertical shrink by a factor of $$\frac{1}{3}$$ of the graph of $$f(x)=e^{-x}$$, we need to understand the individual transformations involved.

Translation 4 Units Right and 1 Unit Down

The translation of a function $$f(x)$$ by $$a$$ units to the right and $$b$$ units down is given by the rule $$f(x-a) - b$$. In this case, we want to translate the graph of $$f(x)=e^{-x}$$ 4 units to the right and 1 unit down. This can be achieved by replacing $$x$$ with $$x-4$$ and subtracting 1 from the function.

Vertical Shrink by a Factor of $$\frac{1}{3}$$

A vertical shrink by a factor of $$k$$ of a function $$f(x)$$ is given by the rule $$kf(x)$$. In this case, we want to shrink the graph of $$f(x)=e^{-x}$$ vertically by a factor of $$\frac{1}{3}$$.

Composing the Transformations

To find the rule for $$g$$, we need to compose the translation and vertical shrink transformations. First, we apply the translation transformation to the function $$f(x)=e^{-x}$$, which gives us $$f(x-4) - 1$$. Then, we apply the vertical shrink transformation to the result, which gives us $$\frac{1}{3}(f(x-4) - 1)$$.

Simplifying the Expression

To simplify the expression, we can start by evaluating the inner function $$f(x-4)$$, which is $$e^{-(x-4)}$$. Then, we can substitute this expression into the outer function, which gives us $$\frac{1}{3}(e^{-(x-4)} - 1)$$.

Final Rule for $$g$$

The final rule for $$g$$ is $$g(x) = \frac{1}{3}(e^{-(x-4)} - 1)$$. This rule represents a translation 4 units right and 1 unit down, followed by a vertical shrink by a factor of $$\frac{1}{3}$$ of the graph of $$f(x)=e^{-x}$$.

Example Use Case

To illustrate the use of the rule for $$g$$, let's consider an example. Suppose we want to find the value of $$g(2)$$. We can start by evaluating the inner function $$f(x-4)$$ at $$x=2$$, which gives us $$f(2-4) = f(-2) = e^2$$. Then, we can substitute this expression into the outer function, which gives us $$g(2) = \frac{1}{3}(e^2 - 1)$$.

Conclusion

In this article, we have derived a rule for $$g$$ that represents a translation 4 units right and 1 unit down, followed by a vertical shrink by a factor of $$\frac{1}{3}$$ of the graph of $$f(x)=e^{-x}$$. The final rule for $$g$$ is $$g(x) = \frac{1}{3}(e^{-(x-4)} - 1)$$. We have also provided an example use case to illustrate the use of the rule for $$g$$.

Key Takeaways

To create a rule for $$g$$ that represents a translation 4 units right and 1 unit down, followed by a vertical shrink by a factor of $$\frac{1}{3}$$ of the graph of $$f(x)=e^{-x}$$, we need to understand the individual transformations involved.
The translation of a function $$f(x)$$ by $$a$$ units to the right and $$b$$ units down is given by the rule $$f(x-a) - b$$.
A vertical shrink by a factor of $$k$$ of a function $$f(x)$$ is given by the rule $$kf(x)$$.
To find the rule for $$g$$, we need to compose the translation and vertical shrink transformations.
The final rule for $$g$$ is $$g(x) = \frac{1}{3}(e^{-(x-4)} - 1)$$.

Understanding the Problem

In the previous article, we derived a rule for $$g$$ that represents a translation 4 units right and 1 unit down, followed by a vertical shrink by a factor of $$\frac{1}{3}$$ of the graph of $$f(x)=e^{-x}$$. In this article, we will answer some frequently asked questions about composing transformations.

Q: What is the difference between a horizontal and vertical translation?

A: A horizontal translation is a transformation that shifts the graph of a function to the left or right, while a vertical translation is a transformation that shifts the graph of a function up or down.

Q: How do I apply a horizontal translation to a function?

A: To apply a horizontal translation to a function, you need to replace $$x$$ with $$x-a$$, where $$a$$ is the number of units you want to translate the graph to the right or left.

Q: How do I apply a vertical translation to a function?

A: To apply a vertical translation to a function, you need to add or subtract a constant value from the function.

Q: What is the difference between a horizontal and vertical shrink?

A: A horizontal shrink is a transformation that compresses the graph of a function horizontally, while a vertical shrink is a transformation that compresses the graph of a function vertically.

Q: How do I apply a horizontal shrink to a function?

A: To apply a horizontal shrink to a function, you need to replace $$x$$ with $$\frac{x}{k}$$, where $$k$$ is the scale factor.

Q: How do I apply a vertical shrink to a function?

A: To apply a vertical shrink to a function, you need to multiply the function by a constant value.

Q: Can I apply multiple transformations to a function?

A: Yes, you can apply multiple transformations to a function. To do this, you need to compose the transformations in the correct order.

Q: How do I compose multiple transformations?

A: To compose multiple transformations, you need to apply each transformation in the correct order. For example, if you want to apply a horizontal translation, followed by a vertical shrink, you need to first replace $$x$$ with $$x-a$$, and then multiply the function by a constant value.

Q: What is the final rule for $$g$$?

A: The final rule for $$g$$ is $$g(x) = \frac{1}{3}(e^{-(x-4)} - 1)$$.

Q: Can I use the rule for $$g$$ to find the value of $$g(2)$$?

A: Yes, you can use the rule for $$g$$ to find the value of $$g(2)$$. To do this, you need to substitute $$x=2$$ into the rule for $$g$$.

Q: What is the value of $$g(2)$$?

A: The value of $$g(2)$$ is $$\frac{1}{3}(e^2 - 1)$$.

Conclusion

In this article, we have answered some frequently asked questions about composing transformations. We have also provided examples and explanations to help you understand the concepts.

Key Takeaways

A horizontal translation is a transformation that shifts the graph of a function to the left or right.
A vertical translation is a transformation that shifts the graph of a function up or down.
A horizontal shrink is a transformation that compresses the graph of a function horizontally.
A vertical shrink is a transformation that compresses the graph of a function vertically.
You can apply multiple transformations to a function by composing them in the correct order.