Question

Predict the end behavior of the graph of the function.
​f(x)equals3.18x Superscript 4plus 6x squaredplusxnegative 6

Answers

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Answered by GPT-4o mini
To analyze the end behavior of the polynomial function

\[
f(x) = 3.18x^4 + 6x^2 + x - 6,
\]

we need to look at the leading term of the polynomial, as this term will dominate the function's behavior for very large and very small values of \(x\).

1. **Identify the leading term**: The leading term in this function is \(3.18x^4\), which is the term with the highest exponent (degree 4).

2. **Analyze the leading coefficient and degree**:
- The degree of the polynomial is 4 (an even degree).
- The leading coefficient (3.18) is positive.

3. **Determine end behavior**:
- For an even degree polynomial with a positive leading coefficient, the end behavior is as follows:
- As \(x \to +\infty\) (as \(x\) approaches positive infinity), \(f(x) \to +\infty\) (the graph will rise).
- As \(x \to -\infty\) (as \(x\) approaches negative infinity), \(f(x) \to +\infty\) (the graph will also rise).

In conclusion, the end behavior of the function \(f(x)\) is:

- \(f(x) \to +\infty\) as \(x \to +\infty\)
- \(f(x) \to +\infty\) as \(x \to -\infty\)

The graph will rise to the right and rise to the left.

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