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Someone, please help with this Calculus problem!!! ASAP

Someone, please help with this Calculus problem!!! ASAP-example-1

1 Answer

3 votes

Answer:

(C) 13/6

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Algebra I

Point-Slope Form: y - y₁ = m(x - x₁)

  • x₁ - x coordinate
  • y₁ - y coordinate
  • m - slope

Function Notation

Exponential Properties:
\sqrt[n]{x} = x^(1)/(n)

Calculus

The definition of a derivative is the slope of the tangent line.

Basic Power Rule:

  • f(x) = cxⁿ
  • f’(x) = c·nxⁿ⁻¹

Explanation:

Step 1: Define

f(x) = ∛x

Tangent Line Point (8, 2)

Find approximation of f(10)

Step 2: Differentiate

  1. Rewrite Function:
    f(x) = x^(1)/(3)
  2. Differentiate [Basic Power]:
    f'(x) = (1)/(3) x^{(1)/(3) -1}
  3. Simplify Derivative:
    f'(x) = (1)/(3) x^{(-2)/(3)}
  4. Rewrite Derivative:
    f'(x) = \frac{1}{3x^{(2)/(3) }}

Step 3: Find Equation of Tangent Line

Tangent Point (8, 2)

Find instantaneous slope

  1. Substitute in x:
    f'(8) = \frac{1}{3(8)^{(2)/(3) }}
  2. Exponents:
    f'(8) = (1)/(3(4))
  3. Multiply:
    f'(8) = (1)/(12)

This is our slope of the tangent line at (8, 2)

Find instantaneous equation

  1. Substitute [PSF]:
    y - 2 = (1)/(12) (x-8)

Step 4: Find Approximation

Evaluation f(10)

  1. Substitute in x:
    y - 2 = (1)/(12) (10-8)
  2. Subtract:
    y - 2 = (1)/(12) (2)
  3. Multiply:
    y - 2 = (1)/(6)
  4. Isolate y:
    y = (1)/(6) + 2
  5. Add:
    y = (13)/(6)

Here we see that the approximation would be 13/6 using the tangent line approximation (calculus). Therefore, C is the correct answer.

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