Class 11th Mathematics Unit Test: Straight Lines, Circle, Conic Section, Set and Relation
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Questions and Answers

Which conic section is represented by the equation $3x^2 + 4y^2 - 12x + 16y - 20 = 0$?

  • Ellipse (correct)
  • Hyperbola
  • Circle
  • Parabola
  • Which of the following represents the equation of a straight line passing through the point (3, 4) and perpendicular to the line $2x - 3y + 5 = 0$?

  • $2x + 3y - 1 = 0$
  • $2x - 3y - 11 = 0
  • $3x + 2y - 5 = 0$
  • $3x - 2y - 5 = 0$ (correct)
  • For the circle with center (2, -3) and passing through the point (4, 1), what is the equation of the circle?

  • $(x - 2)^2 + (y + 3)^2 = 20$
  • $(x - 4)^2 + (y - 1)^2 = 20$
  • $(x - 2)^2 + (y + 3)^2 = 16$ (correct)
  • $(x - 4)^2 + (y - 1)^2 = 16$
  • What is the equation of the tangent to the circle $x^2 + y^2 - 6x + 8y - 5 = 0$ at the point (1, -1)?

    <p>$x + y - 3 = 0$</p> Signup and view all the answers

    Find the equation of the ellipse with foci at (1, 2) and (-1, 2) passing through the point (3, 2).

    <p>$rac{x^2}{4} + rac{(y-2)^2}{3} = 1$</p> Signup and view all the answers

    Determine the equation of the parabola with focus at (3, 4) and directrix $y = -2$.

    <p>$(x-3)^2 = 8(y+2)$</p> Signup and view all the answers

    Given the equation of the hyperbola $9x^2 - 16y^2 - 36x + 64y - 71 = 0$, find the coordinates of the center and vertices.

    <p>Center: (2, -2), Vertices: (5, -2) and (-1, -2)</p> Signup and view all the answers

    The equation of the tangent to the circle $x^2 + y^2 - 6x + 8y - 5 = 0$ at the point (1, -1) is a ______ line

    <p>straight</p> Signup and view all the answers

    Find the equation of the ______ with foci at (1, 2) and (-1, 2) passing through the point (3, 2)

    <p>ellipse</p> Signup and view all the answers

    Determine the equation of the ______ with focus at (3, 4) and directrix $y = -2$

    <p>parabola</p> Signup and view all the answers

    For the circle with center (2, -3) and passing through the point (4, 1), what is the equation of the ______?

    <p>circle</p> Signup and view all the answers

    Study Notes

    Conic Sections

    • The equation $3x^2 + 4y^2 - 12x + 16y - 20 = 0$ represents an ellipse.

    Lines

    • The equation of a line perpendicular to $2x - 3y + 5 = 0$ passing through (3, 4) is $3x + 2y - 17 = 0$.

    Circles

    • The equation of a circle with center (2, -3) and passing through (4, 1) is $(x - 2)^2 + (y + 3)^2 = 25$.
    • The equation of the tangent to $x^2 + y^2 - 6x + 8y - 5 = 0$ at (1, -1) is $x - 4y - 3 = 0$.

    Ellipses

    • The equation of the ellipse with foci (1, 2) and (-1, 2) and passing through (3, 2) is $\frac{(x - 1)^2} {9} + \frac{(y - 2)^2}{5} = 1$.

    Parabolas

    • The equation of the parabola with focus (3, 4) and directrix $y = -2$ is $(x - 3)^2 = 12(y - 1)$.

    Hyperbolas

    • The center of the hyperbola $9x^2 - 16y^2 - 36x + 64y - 71 = 0$ is (2, 2).
    • The vertices of the hyperbola are (2, 2 ± √5).

    Tangent Lines

    • The equation of the tangent to the circle $x^2 + y^2 - 6x + 8y - 5 = 0$ at the point (1, -1) is a linear line.

    Ellipses Notes

    • Find the equation of the ellipse with foci at (1, 2) and (-1, 2) passing through the point (3, 2)

    Parabolas Notes

    • Determine the equation of the parabola with focus at (3, 4) and directrix $y = -2$

    Circles Notes

    • For the circle with center (2, -3) and passing through the point (4, 1), what is the equation of the circle?

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    Description

    This unit test paper consists of 25 marks and covers topics such as straight lines, circle, conic section, set, and relation. Test your understanding of these mathematical concepts with this comprehensive assessment.

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