Concept explainers
33-44
(a) Find the intervals of increase or decrease.
(b) Find the
(c) Find the intervals of concavity and the inflection points.
(d) Use the information from parts
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Calculus (MindTap Course List)
- Finding a Minimum Suppose the function f=x392x2+6x+1 describes a physical situation that makes sense only for whole numbers between 1 and 5. For what value of x does f reach a minimum and what is that minimum value?arrow_forward(a) What is the degree of a quadratic function f?What is the standard form of a quadratic function? How do you put a quadratic function into standard form? (b) The quadratic function f(x)=a(xh)2+k is in standard form. The graph of f is a parabola. What is the vertex of the graph of f? How do you determine whether f(h) = k is a minimum or a maximum value? (c) Express f(x)=x2+4x+1 in standard form. Find the vertex of the graph and the maximum or minimum value of f.arrow_forwardMinimizing a Distance When we seek a minimum or maximum value of a function, it is sometimes easier to work with a simpler function instead. Suppose g(x)=f(x) where f(x)0 for all x. Explain why the local minima and maxima of f and g occur at the same values of x. Let gx be the distance between the point 3,0 and the point (x,x2) on the graph of the parabola y=x2. Express g as a function of x. Find the minimum value of the function g that you found in part b. Use the principle described in part a to simplify your work.arrow_forward
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