Lesson 7.2.1

7.2.1 Differentiating x^n for rational n Quiz: Pearson Edexcel Maths, Unit 7

20 questions

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Lesson 7.2.1, Differentiating x^n for rational n: 20 multiple choice questions for the Pearson Edexcel Maths (9MA0), Unit 7: Differentiation, written with Revision Ninja.

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The 20 questions

  1. What is the derivative of x raised to the power of n with respect to x?

    • nx^(n-1)
    • nx^n
    • n^x
    • x^(n-1)
  2. What is the derivative of x^4?

    • x^3
    • 4x^4
    • 4x^3
    • 3x^4
  3. Differentiate y = x^5 with respect to x.

    • 5x^4
    • 5x^5
    • 4x^5
    • x^4
  4. What is the derivative of 3x^2?

    • 3x^3
    • 3x
    • 6x
    • 6x^2
  5. Differentiate 4x^3 with respect to x.

    • 12x^3
    • 4x^2
    • 7x^2
    • 12x^2
  6. What is the derivative of 1 over x squared, written as x^(-2)?

    • -3x^(-2)
    • -2x^(-1)
    • -2x^(-3)
    • 2x^(-3)
  7. Differentiate the square root of x, expressed as x^(1/2).

    • 1.5x^(0.5)
    • 0.5x^(0.5)
    • 2x^(0.5)
    • 0.5x^(-0.5)
  8. What is the gradient function of f(x) = x^(3/2)?

    • 1.5x^(0.5)
    • 0.5x^(1/2)
    • 3/2x^(-0.5)
    • 1.5x^(3/2)
  9. Find the derivative of 5x^(-4) with respect to x.

    • -5x^(-5)
    • -20x^(-5)
    • -20x^(-3)
    • 20x^(-5)
  10. What is the gradient of the curve y = x^3 at the point where x = 2?

    • 24
    • 6
    • 8
    • 12
  11. Find the rate of change of y = 4sqrt(x) when x = 4.

    • 1
    • 2
    • 4
    • 0.5
  12. What is the derivative of a constant term such as 7 with respect to x?

    • 7
    • 0
    • x
    • 1
  13. Differentiate f(x) = 2x^3 - 4x with respect to x.

    • 6x^2 - 4x
    • 6x - 4
    • 2x^2 - 4
    • 6x^2 - 4
  14. Find the derivative of (2/3)x^3 with respect to x.

    • (2/3)x^2
    • 2x^3
    • 2x^2
    • 6x^2
  15. What is the derivative of x^(-1)?

    • x^(-2)
    • -x^(-1)
    • -x^(-2)
    • -2x^(-2)
  16. Differentiate y = 3 / x with respect to x.

    • -2x^(-3)
    • -3x^(-2)
    • -3x^(-1)
    • 3x^(-2)
  17. What power of x appears in the derivative of x^(2/3)?

    • -2/3
    • -1/3
    • 2/3
    • 1/3
  18. Differentiate 5x^(4/5) with respect to x.

    • 4x^(1/5)
    • 5x^(-1/5)
    • 4x^(-1/5)
    • 4x^(4/5)
  19. What is the second derivative of x^4 with respect to x?

    • 24x
    • 12x^3
    • 4x^3
    • 12x^2
  20. What is the derivative of 6x^(1/3) with respect to x?

    • 18x^(-2/3)
    • 2x^(-2/3)
    • 2x^(1/3)
    • 6x^(-2/3)

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