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Application of Derivatives

Mathematics · Class 12 · All

MathematicsClass 12AllEasy
Q1/15
45s

If f(x) = x^2, then the equation of the normal to the curve at the point (1,1) is

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All 15 questions in this quiz
  1. The primary objective of optimization problems in Application of Derivatives is to

    1. Find the derivative of a function.
    2. Find the maximum or minimum value of a quantity.
    3. Solve systems of linear equations.
    4. Calculate determinants.
  2. Which theorem states that if a function is continuous on [a, b], differentiable on (a, b), and f(a) = f(b), then there exists at least one point c in (a, b) such that f'(c) = 0?

    1. Mean Value Theorem
    2. Rolle's Theorem
    3. Intermediate Value Theorem
    4. L'Hospital's Rule
  3. If a function is increasing on an interval, then its first derivative on that interval is

    1. Negative
    2. Zero
    3. Positive
    4. Undefined
  4. For the function f(x) = -x^2 + 6x - 5, the maximum value is

    1. 4
    2. 5
    3. 6
    4. 8
  5. If f(x) = x^3 - 6x^2 + 9x + 1, then the value of x at which the function has a local maximum is

    1. x = 0
    2. x = 1
    3. x = 3
    4. x = 2
  6. Which of the following is the necessary condition for a function to have a local maximum or minimum at x = a, provided the derivative exists?

    1. f(a) = 0
    2. f''(a) = 0
    3. f'(a) = 0
    4. f(a) > 0
  7. If the second derivative of a function at x = a is positive and f'(a) = 0, then x = a is

    1. Point of maximum
    2. Point of minimum
    3. Point of inflection
    4. Point of discontinuity
  8. If f(x) = x^2, then the equation of the normal to the curve at the point (1,1) is

    1. y = 2x - 1
    2. y = -x + 2
    3. y = x - 2
    4. y = -2x + 3
  9. If f(x) = x^3 - 3x^2, then the critical points of the function are

    1. x = 0 only
    2. x = 2 only
    3. x = 0 and x = 2
    4. x = -2 and x = 2
  10. If the slope of the tangent to a curve at a point is 2, then the slope of the normal at the same point is

    1. 2
    2. -2
    3. 1/2
    4. -1/2
  11. The equation of the tangent to the curve y = x^2 at the point (1,1) is

    1. y = 2x - 1
    2. y = x + 1
    3. y = 2x + 1
    4. y = x - 1
  12. If f'(x) = 0 at x = 5, then x = 5 is necessarily

    1. A point of maximum
    2. A point of minimum
    3. A stationary point
    4. A point of discontinuity
  13. The slope of the tangent to the curve y = x^3 at x = 2 is

    1. 4
    2. 8
    3. 12
    4. 16
  14. If the derivative of a function changes from positive to negative at x = a, then x = a is

    1. Point of minimum
    2. Point of maximum
    3. Point of inflection
    4. Point of discontinuity
  15. If f(x) = x^2 - 4x + 3, then the interval on which the function is increasing is

    1. x < 2
    2. x > 2
    3. x < 0
    4. x > 4