Observe the graph.
The two points on the graph of the function are and .
The slope of the function is .
The slope of the function with points and :
.
.
Find the line equation.
Point slope form of line equation is .
Substitute the points and in line equation.
The line equation .
The line equation .
Apply derivative on the each side with respect to .
Apply derivative on the each side with respect to .
Graph :
Graph the first derivative function , second derivative function and .
The first derivative function is .
The second derivative function is .
Graph of the derivative function is
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