For what values of x is #f(x)=-x^2-6x+2# concave or convex?
1 Answer
Feb 13, 2016
Explanation:
First find the second derivative :
Hence, since the second derivative is negative for all x values, it implies that this function is concave down over the entire real number line.
The graph of the function verifies this fact ;
graph{-x^2-6x+2 [-23.38, 27.94, -13.06, 12.6]}