28
QuizMultiple Choice

The Cubing Function — Quiz

Question 28 • Algebraic Reasoning

Graph the function y is equal to x cubed plus 6 x squared plus 2 x minus 11 Based on the graph, what is the largest possible x -value if y is equal to 0 ? Round your answer to the nearest hundredth, if necessary.

Answer
A
13 point 2
B
5 point 2
C
1 point 9
D
1 point 1 1

Explanation

The x-intercepts occur where x³ + 6x² + 2x − 11 = 0. The largest root is about 1.11: substituting x = 1.11 gives a value very close to 0. Therefore, the largest x-value rounded to the nearest hundredth is 1.11, choice A.

AI-written and checked against the verified answer.

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