Use a graphing calculator to find the coordinates of the turning points of the graph of the polynomial function in the
indicated domain interval. Give answers to the nearest hundredth.
-$$f ( x ) = x ^ { 3 } + 7 x ^ { 2 } - 26 x - 72 ; [ 1,2 ]$$
A) $( - 6.09,120.09 )$
B) $( 3.00 , - 60.00 )$
C) $( 0,8 )$
D) $( 1.42 , - 91.94 )$

Question

Quizplus · Accepted Answer

To find the turning points of the given polynomial function within the specified domain interval [1,2], we can use a graphing calculator to plot the function and identify the points where the slope changes direction. The correct answer, (1.42, -91.94), falls within this interval and represents a turning point of the function. The other options either fall outside of the specified domain or do not represent turning points of the function when graphed.

Use a Graphing Calculator to Find the Coordinates of the Turning