math

how to put this in vertex form:
-2(2x-1)(x+4)

  1. 👍
  2. 👎
  3. 👁
  1. y= -2(2x-1)(x+4)
    -y/2 = (2x^2 +7x -4 )
    -y/4 = x^2 +7/2 x -2
    -y/4 + 2 = x^2 +7/2 x
    -y/4 + 2 + 49/16 = x^2 + 7/2 x + 49/16
    -y/4 + 81/16 = (x+7/4)^2
    -1/4 (y-81/4) = (x+7/4)^2
    (-7/4, 81/4)

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. algebra 2

    a quadratic equation can be written in vertex form or in standard form. sometimes one form is more beneficial than the other. identify which form would be more helpful if you needed to do each task listed below and explain why. a.

  2. algebra 1 connexus

    Let f(x)=ax2+bx+c be a quadratic function where a≠0. Which of the following statements is true about the relationship between the vertex of f(x) and the value of a?(1 point) a.The vertex of f(x) is a maximum when a>0 or a0. The

  3. algebra

    Suppose a parabola has a vertex (-4,7) and also passes through the point (-3,8) Write the equation of the parabola in vertex form. f(x)=a(x-h)^2+k I believe h=-4 k=7 Not sure what to do from here.

  4. math

    which form of a quadratic funtion is easiest to use to find the maximum or minimum value of the function? satandard form factored form vertex form any form ***********

  1. algebra 2

    A quadratic equation can be written in vertex form or in standard form. Sometimes one form is more beneficial than the other. Identify which form would be more helpful if you needed to do each task listed below and explain why a.

  2. algebra

    Suppose a parabola has vertex (-4,7) and also passes through the point (-3,8), write the equation of the parabola in vertex form.

  3. algebra

    find the standard form of this vertex form of this quadratic function y=(x+4)^2-16 thank you..with steps please

  4. Math

    Convert equation from quadratic form to vertex form, y= a(x-h)^2 +k, by completing the square. y= -.25x^2+5.5x-5.25

  1. math

    A parabola passes through the point (3, 5) on its way to the vertex at (7, 11). Determine the equation in vertex form that represents this parabola.

  2. Math

    Write the standard form of the quadratic function that has the indicated vertex and whose graph passes through the given point. Vertex: (-2, 5) Point: (0, 9)

  3. calculus

    write the vertex form equation of each parabola. 1) Vertex:(-5,8), Focus:(-21/4, 8) 2) Vertex:(-6,-9), Directrix: x= 47/8 3)Vertex(8,-1) y- intercept: -17 4) Open left or right, Vertex: (7, 6), passes through:(-11,9)

  4. geometry

    Trisha drew a pair of line segments starting from a vertex. Which of these statements best compares the pair of line segments with the vertex? Answer A:Line segments have two endpoints and a vertex is a common endpoint where two

You can view more similar questions or ask a new question.