Math Problem Statement

The table above gives values of the differentiable functions f and g and of their derivatives f' and g' at selected values of x. If h(x) = f(g(x)), then h'(1) = ?

Solution

We are given the functions f(x)f(x) and g(x)g(x), along with their derivatives f(x)f'(x) and g(x)g'(x), and the table provides the corresponding values at specific points. The function h(x)h(x) is defined as:

h(x)=f(g(x))h(x) = f(g(x))

To find h(x)h'(x), we will apply the chain rule. The derivative of h(x)=f(g(x))h(x) = f(g(x)) with respect to xx is:

h(x)=f(g(x))g(x)h'(x) = f'(g(x)) \cdot g'(x)

Now, we are asked to find h(1)h'(1), so we need to compute this derivative at x=1x = 1.

  1. From the table, when x=1x = 1:

    • g(1)=1g(1) = -1
    • g(1)=2g'(1) = 2
  2. Now, using g(1)=1g(1) = -1, we find f(g(1))=f(1)f'(g(1)) = f'(-1). From the table:

    • f(1)=5f'(-1) = 5
  3. Finally, using the chain rule formula:

h(1)=f(g(1))g(1)=f(1)g(1)=52=10h'(1) = f'(g(1)) \cdot g'(1) = f'(-1) \cdot g'(1) = 5 \cdot 2 = 10

Thus, h(1)=10h'(1) = 10.

The correct answer is: 10\boxed{10}

Would you like more details or have any further questions?

Here are some related questions you can explore:

  1. What is the chain rule, and how does it apply to composite functions?
  2. How would you compute h(2)h'(2) for h(x)=f(g(x))h(x) = f(g(x)) using the table?
  3. What happens to the derivative of a function when one of its terms has a zero derivative?
  4. Could you explain how the derivative of the composite function differs from simple differentiation?
  5. How does the chain rule apply in multivariable calculus?

Tip: Always check the values of both the function and its derivative from a table before applying the chain rule to ensure accurate results!

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Math Problem Analysis

Mathematical Concepts

Calculus
Chain Rule
Differentiation
Composite Functions

Formulas

h'(x) = f'(g(x)) * g'(x)

Theorems

Chain Rule

Suitable Grade Level

Grades 11-12 (or introductory university calculus)