To determine the end behavior of the function \( f(x) = x^3 + 3x^2 - x - 3 \), we can use the leading coefficient test.
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Identify the degree and leading coefficient of the polynomial:
- The degree of the polynomial is 3 (since the highest power of \( x \) is \( x^3 \)).
- The leading coefficient is 1 (the coefficient of \( x^3 \)).
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Apply the leading coefficient test for odd degree polynomials with a positive leading coefficient:
- For a polynomial of odd degree with a positive leading coefficient, the end behavior is that the graph falls to the left and rises to the right.
Based on this analysis, the correct answer is:
C. The graph falls to the left and rises to the right.