SOLUTION: Given the function y = ( x - 4 ) ( x^2 + 3x + 2 ) find the coordinates of the two stationary points and the point of inflection. Note. A stationary point is a critical poi

Algebra ->  Graphs -> SOLUTION: Given the function y = ( x - 4 ) ( x^2 + 3x + 2 ) find the coordinates of the two stationary points and the point of inflection. Note. A stationary point is a critical poi      Log On


   



Question 993482: Given the function
y = ( x - 4 ) ( x^2 + 3x + 2 )
find the coordinates of the two stationary points and the point of inflection.
Note. A stationary point is a critical point at which the derivative is 0.
Please enter your answer as a list of coordinate pairs, where a single coordinate pair (a, b)
THANK YOU

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


In order to find the stationary points, you need to find the zeros of the first derivative. In order to find the point of inflection you will need to find the zero of the second derivative. None of this is very rigorous, but will work just fine for a polynomial function.

You have two choices for finding the first derivative. Since you have the product of two functions, you can use the product rule:





Or you can just perform the indicated multiplication and take the derivative by repeated applications of the power rule.

Either way, after you have the first derivative, set the quadratic equal to zero and solve. You will get the values of the two stationary points.

The second derivative is just the derivative of the first derivative quadratic polynomial

Set the second derivative equal to zero and solve for the value of the coordinate of the inflection point.

John

My calculator said it, I believe it, that settles it