The problem requires us to analyze the transformation of a parabola from its parent function $f(x) = x^2$ to a new function $g(x)$. We are given that there's no vertical stretch or compression, a vertical shift down by 4 units, and a horizontal shift to the right by 5 units. We need to express $g(x)$ in function notation and as an equation, and then determine its domain and range using interval notation.
2025/6/12
1. Problem Description
The problem requires us to analyze the transformation of a parabola from its parent function to a new function . We are given that there's no vertical stretch or compression, a vertical shift down by 4 units, and a horizontal shift to the right by 5 units. We need to express in function notation and as an equation, and then determine its domain and range using interval notation.
2. Solution Steps
First, let's consider the parent function .
We are told the graph has been shifted horizontally right by 5 units. This can be expressed as .
We are also told the graph has been shifted vertically down by 4 units. This can be expressed as .
Therefore, we can write .
Now, let's consider the domain of . Since is a quadratic function, it is defined for all real numbers. Thus, the domain is .
Next, let's consider the range of . The vertex of the parabola is at . Since the coefficient of the term is positive, the parabola opens upwards. Therefore, the minimum value of is , and it extends to infinity. Thus, the range is .
4) Function notation:
Since is a transformation of with a horizontal shift right 5 and a vertical shift down 4, .
5) As an equation:
From the transformations, .
6) Domain of :
Since the quadratic is defined for all real numbers, the domain is .
7) Range of :
The minimum value of is -4 (at the vertex), and the values go up to infinity. Thus, the range is .
3. Final Answer
Domain of :
Range of :