Math Problem Statement
Starting with the graph of a basic function, graph the following function using the techniques of shifting, compressing, stretching, and/or reflecting. Find the domain and range of the function.
g left parenthesis x right parenthesis equals left parenthesis x plus 3 right parenthesis cubed minus 1
Solution
To graph the function , we can apply a sequence of transformations to the basic cubic function . Let's break down the steps:
Step-by-step Transformations:
-
Start with the basic function:
The parent function is , which has an "S"-shaped curve passing through the origin (0, 0). -
Horizontal shift (left by 3 units):
The term shifts the graph of to the left by 3 units. So, every point on the graph of moves left by 3 units.
Now, the graph passes through the point (-3, 0) instead of (0, 0). -
Vertical shift (down by 1 unit):
The at the end shifts the graph down by 1 unit. So, the point that was at (-3, 0) moves to (-3, -1), and the entire graph is shifted down by 1 unit.
Domain and Range:
-
Domain: The domain of is the set of all possible -values for which the function is defined. Since there are no restrictions on the value of in a cubic function, the domain is:
-
Range: The range is the set of all possible -values that the function can take. Since cubic functions can take any real value and this function is simply a shifted version of the basic cubic, the range is also:
Summary of Transformations:
- Left shift by 3 units.
- Down shift by 1 unit.
Graph Description:
The resulting graph will be an "S"-shaped curve passing through the point (-3, -1), with the general cubic shape preserved. The function grows indefinitely in both directions, so it will continue to rise as and fall as .
Would you like me to provide a detailed graph or further clarification?
Here are 5 related questions:
- How do horizontal and vertical stretches affect the graph of a cubic function?
- What is the effect of reflecting a cubic function over the x-axis or y-axis?
- Can you describe how combining multiple transformations (e.g., reflections and shifts) affects the function's graph?
- What happens to the graph of when compressed vertically or horizontally?
- How would you determine the inverse of a cubic function?
Tip: When transforming graphs, always apply shifts before stretches or reflections to simplify the process.
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Math Problem Analysis
Mathematical Concepts
Functions
Transformations
Cubic Functions
Formulas
g(x) = (x + 3)^3 - 1
Theorems
Transformation of Functions
Domain and Range Theorems
Suitable Grade Level
Grades 9-12
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