Rogelio is asked to sketch a graph of g(x)=3x3(x−5)2(5−x)4 . How many turning points should his sketch include?(1 point)

Responses

nine at most
nine at most

eight at most
eight at most

three at most
three at most

exactly eight

1 answer

To determine the number of turning points of the function \( g(x) = 3x^3(x-5)^2(5-x)^4 \), we first need to find the degree of the polynomial.

  1. Identify the degree of each factor:

    • The factor \( 3x^3 \) contributes a degree of 3.
    • The factor \( (x-5)^2 \) contributes a degree of 2.
    • The factor \( (5-x)^4 \) also contributes a degree of 4.
  2. Calculate the total degree of the polynomial: \[ \text{Total degree} = 3 + 2 + 4 = 9 \]

  3. Determine the maximum number of turning points: The maximum number of turning points of a polynomial is given by the degree minus one. \[ \text{Maximum turning points} = 9 - 1 = 8 \]

Thus, the sketch of the graph should include at most eight turning points.

The correct response is: eight at most.