Let g be a twice differentiable function, and let g(4)=−2, g′(4)=0, and g′′(4)=6.What occurs in the graph of g at the point (4,−2) ?Choose 1 answer:(A) (4,−2) is a minimum point.(B) (4,−2) is a maximum point.(C) There's not enough information to tell.
Q. Let g be a twice differentiable function, and let g(4)=−2, g′(4)=0, and g′′(4)=6.What occurs in the graph of g at the point (4,−2) ?Choose 1 answer:(A) (4,−2) is a minimum point.(B) (4,−2) is a maximum point.(C) There's not enough information to tell.
Given Information: We are given that g is a twice differentiable function, and we have the following information about g and its derivatives at x=4: - g(4)=−2 - g′(4)=0 - g′′(4)=6
The value of g(4)=−2 tells us the y-coordinate of the point on the graph of g at x=4. The value of g′(4)=0 tells us that the slope of the tangent to the graph of g at x=4 is zero, which means the graph has a horizontal tangent line at this point. This could indicate a local maximum, a local minimum, or a point of inflection.
The value of g′′(4)=6 tells us the concavity of the graph at x=4. Since g5 is positive, the graph of g is concave up at x=4. This means that the point g8 is a local minimum because the graph is shaped like a "U" around this point.