Question
Find the degree, leading term, leading coefficient, constant term, and end behavior of the given polynomial. \( f(x)=6 x+3 x^{2}-1 \) Degree: Leading term: Leading coefficient: End behavior: As \( x \rightarrow-\infty, f(x) \rightarrow \square \) As \( x \rightarrow \infty, f(x) \rightarrow \square \)
Ask by Salinas Edwards. in the United States
Jan 23,2025
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Answer
Degree: 2
Leading Term: \( 3x^{2} \)
Leading Coefficient: 3
Constant Term: -1
End Behavior:
As \( x \rightarrow -\infty \), \( f(x) \rightarrow \infty \)
As \( x \rightarrow \infty \), \( f(x) \rightarrow \infty \)
Solution
Let's analyze the polynomial \( f(x) = 6x + 3x^{2} - 1 \) to determine its degree, leading term, leading coefficient, constant term, and end behavior.
### 1. Degree:
The **degree** of a polynomial is the highest power of the variable \( x \) in the polynomial.
- **Degree:** \( 2 \)
### 2. Leading Term:
The **leading term** is the term with the highest power of \( x \).
- **Leading Term:** \( 3x^{2} \)
### 3. Leading Coefficient:
The **leading coefficient** is the coefficient of the leading term.
- **Leading Coefficient:** \( 3 \)
### 4. Constant Term:
The **constant term** is the term without the variable \( x \).
- **Constant Term:** \( -1 \)
### 5. End Behavior:
The **end behavior** of a polynomial describes what happens to \( f(x) \) as \( x \) approaches positive or negative infinity.
For \( f(x) = 3x^{2} + 6x - 1 \):
- Since the degree is **even** and the leading coefficient is **positive**, both ends of the polynomial will point upwards.
- **As \( x \rightarrow -\infty \), \( f(x) \rightarrow \infty \)**
- **As \( x \rightarrow \infty \), \( f(x) \rightarrow \infty \)**
### Summary:
- **Degree:** \( 2 \)
- **Leading Term:** \( 3x^{2} \)
- **Leading Coefficient:** \( 3 \)
- **Constant Term:** \( -1 \)
- **End Behavior:**
- As \( x \rightarrow -\infty \), \( f(x) \rightarrow \infty \)
- As \( x \rightarrow \infty \), \( f(x) \rightarrow \infty \)
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Beyond the Answer
To analyze the polynomial \( f(x) = 3x^2 + 6x - 1 \), let's break it down: - The degree of the polynomial is the highest power of x, which is **2**. - The leading term is the term with the highest degree, which is **3x^2**. - The leading coefficient is the coefficient of the leading term, which is **3**. - The constant term is the term without x, which is **-1**. For end behavior: As \( x \rightarrow -\infty, f(x) \rightarrow \infty \) because the leading term dominates and is positive. As \( x \rightarrow \infty, f(x) \rightarrow \infty \) for the same reason.