Explore IDNLearn.com's extensive Q&A database and find the answers you're looking for. Our experts are available to provide accurate, comprehensive answers to help you make informed decisions about any topic or issue you encounter.

Assignment
Active
Describing a Translation

How can the graph of [tex]f(x)=\sqrt[3]{x}[/tex] be transformed to represent the function [tex]g(x)=\sqrt[3]{x}-3[/tex]?

Translate the graph of [tex]f(x)[/tex] down 3 units.

The point [tex] (a, b-3) [/tex] is on the graph of [tex]g(x)[/tex].


Sagot :

To transform the graph of the function [tex]\( f(x) = \sqrt[3]{x} \)[/tex] to represent the function [tex]\( g(x) = \sqrt[3]{x} - 3 \)[/tex], we follow these steps:

1. Understand the Basic Function [tex]\( f(x) = \sqrt[3]{x} \)[/tex]:
- The function [tex]\( f(x) = \sqrt[3]{x} \)[/tex] represents the cube root of [tex]\( x \)[/tex].

2. Determine the Transformation:
- The function [tex]\( g(x) = \sqrt[3]{x} - 3 \)[/tex] is obtained by translating the graph of [tex]\( f(x) \)[/tex] down by 3 units. This means that for any point [tex]\((a, \sqrt[3]{a})\)[/tex] on the graph of [tex]\( f(x) \)[/tex], the corresponding point on the graph of [tex]\( g(x) \)[/tex] will be [tex]\((a, \sqrt[3]{a} - 3)\)[/tex].

3. Choose a Specific Point on [tex]\( f(x) \)[/tex] to Illustrate the Transformation:
- Consider a specific point on the graph of [tex]\( f(x) \)[/tex]. For illustration, let's choose [tex]\( x = 8 \)[/tex].
- For [tex]\( f(x) = \sqrt[3]{x} \)[/tex], when [tex]\( x = 8 \)[/tex], we calculate [tex]\( y \)[/tex]:
[tex]\[ y = \sqrt[3]{8} = 2 \][/tex]
- Hence, the point [tex]\((8, 2)\)[/tex] is on the graph of [tex]\( f(x) \)[/tex].

4. Apply the Translation to Find the Corresponding Point on [tex]\( g(x) \)[/tex]:
- We need to move the point [tex]\((8, 2)\)[/tex] down by 3 units to find the corresponding point on [tex]\( g(x) \)[/tex].
- This means the new [tex]\( y \)[/tex]-coordinate will be [tex]\( 2 - 3 = -1 \)[/tex].

Therefore, the point [tex]\((8, -1)\)[/tex] is on the graph of [tex]\( g(x) \)[/tex].

To summarize the transformation and fill in the blanks:

To transform the graph of [tex]\( f(x) = \sqrt[3]{x} \)[/tex] to represent the function [tex]\( g(x) = \sqrt[3]{x} - 3 \)[/tex], translate the graph of [tex]\( f(x) \)[/tex] down [tex]\( 3 \)[/tex] units. The point [tex]\((8, -1)\)[/tex] is on the graph of [tex]\( g(x) \)[/tex].