QuestionWhat is the least possible degree of the polynomial graphed above?
Studdy Solution
STEP 1
1. The graph of the polynomial has three turning points.
2. The polynomial crosses the x-axis at three distinct points: , , and .
3. The polynomial is a real-valued function.
STEP 2
1. Understand the relationship between turning points and the degree of a polynomial.
2. Use the x-intercepts to infer the degree of the polynomial.
3. Determine the least possible degree of the polynomial.
STEP 3
The number of turning points in a polynomial graph is at most , where is the degree of the polynomial.
Given that there are three turning points, the degree must satisfy .
STEP 4
The polynomial crosses the x-axis at three distinct points, which suggests that the polynomial has at least three distinct linear factors.
A polynomial with distinct roots can have a degree of at least .
STEP 5
Combining the information from the turning points and the x-intercepts, the least degree must satisfy both conditions: and .
The smallest integer that satisfies both conditions is .
The least possible degree of the polynomial is:
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