Suppose that f is a differentiable function with derivative f" (x) = (x − 3)(x +...

Suppose that f is a differentiable function with derivative f" (x) = (x − 3)(x + 1)(x + 5). Determine the intervals of x for which the function of f is increasing and decreasing

Explain why a positive value for f" (x) means the graph f(x) is increasing

For f(x) = 2x²- − 3x² − 12x + 21, find where f'(x) = 0, and the intervals on which the function increases and decreases

Determine the values of a, b, and c such that the graph of y = ax_². + bx + c has a relative maximum at (3, 12) and has a y-intercept at 1.

Expert Solution

milcah answered 2 years ago

At what point is the function f(x)= |3-x| not differentiable.

1) Let f(x) be a continuous, everywhere differentiable function and g(x) be its derivative. If f(c)...

1) Let f(x) be a continuous, everywhere differentiable function and g(x) be its derivative. If f(c) = n and g(c) = d, write the equation of the tangent line at x = c using only the variables y, x, c, n, and d. You may use point-slope or slope-intercept but do not introduce more variables. 2) Let f(x) be a continuous, everywhere differentiable function. What kind information does f'(x) provide regarding f(x)? 3) Let f(x) be a continuous, everywhere differentiable...

Let f be a differentiable function on the interval [0, 2π] with derivative f' . Show...

Let f be a differentiable function on the interval [0, 2π] with derivative f' . Show that there exists a point c ∈ (0, 2π) such that cos(c)f(c) + sin(c)f'(c) = 2 sin(c).

Suppose f is a twice differentiable function such that f′(x)>0 and f′′(x)<0 everywhere, and consider the...

Suppose f is a twice differentiable function such that f′(x)>0 and f′′(x)<0 everywhere, and consider the following data table. x 0 1 2 f(x) 3 A B For each part below, determine whether the given values of A and B are possible (i.e., consistent with the information about f′and f′′ given above) or impossible, and explain your answer. a)A= 5, B= 6 (b)A= 5, B= 8 (c)A= 6, B= 6 (d)A= 6, B= 6.1 (e)A= 6, B= 9

Let f : Rn → R be a differentiable function. Suppose that a point x∗ is...

Let f : Rn → R be a differentiable function. Suppose that a point x∗ is a local minimum of f along every line passes through x∗; that is, the function g(α) = f(x^∗ + αd) is minimized at α = 0 for all d ∈ R^n. (i) Show that ∇f(x∗) = 0. (ii) Show by example that x^∗ neen not be a local minimum of f. Hint: Consider the function of two variables f(y, z) = (z − py^2)(z...

prove using the definition of derivative that if f(x) and g(x) is differentiable than (f'(x)g(x) -...

prove using the definition of derivative that if f(x) and g(x) is differentiable than (f'(x)g(x) - f(x)g'(x))/g^2(x)

Use the given function, its first derivative, and its second derivative to answer the following: f(x)=(1/3)x^3...

Use the given function, its first derivative, and its second derivative to answer the following: f(x)=(1/3)x^3 - (1/2)x^2 - 6x + 5 f'(x)= x^2 - x - 6 = (x+2)(x-3) f''(x)= 2x - 1 a) What are the intervals of increase and the intervals of decrease b) Identify local min and max points c) What are the intervals where the function is concave up, concave down and identify the inflection points

Part A. If a function f has a derivative at x not. then f is continuous...

Part A. If a function f has a derivative at x not. then f is continuous at x not. (How do you get the converse?) Part B. 1) There exist an arbitrary x for all y (x+y=0). Is false but why? 2) For all x there exists a unique y (y=x^2) Is true but why? 3) For all x there exist a unique y (y^2=x) Is true but why?

A) Find the derivative of the function f by using the rules of differentiation. f(x) =...

A) Find the derivative of the function f by using the rules of differentiation. f(x) = 380 B)Find the derivative of the function f by using the rules of differentiation. f(x) = x0.8 C) Find the derivative of the function f by using the rules of differentiation. D)Find the derivative of the function. f(u) = 10 u E)Find the derivative of the function f by using the rules of differentiation. f(x) = 9x3 - 2x2 + 1 u u

The directional derivative of a function F(x,y) at a point P (1,-3) in the direction of...

The directional derivative of a function F(x,y) at a point P (1,-3) in the direction of the unit vector - 3/5 i + 4/5 j is equal to - 4 while its directional derivative at P in the direction of the unit vector (1/root5) i + (2/root5) j is equal to 0. Find the directional derivative of F(x,y ) at P in the direction from P(1,-3) towards the point Q(5,0).

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