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  2. Completing the square - Wikipedia

    en.wikipedia.org/wiki/Completing_the_square

    That is, h is the x-coordinate of the axis of symmetry (i.e. the axis of symmetry has equation x = h), and k is the minimum value (or maximum value, if a < 0) of the quadratic function. One way to see this is to note that the graph of the function f(x) = x 2 is a parabola whose vertex is at the origin (0, 0).

  3. Quadratic equation - Wikipedia

    en.wikipedia.org/wiki/Quadratic_equation

    For the quadratic function y = x 2 − x − 2, the points where the graph crosses the x-axis, x = −1 and x = 2, are the solutions of the quadratic equation x 2 − x − 2 = 0. The process of completing the square makes use of the algebraic identity x 2 + 2 h x + h 2 = ( x + h ) 2 , {\displaystyle x^{2}+2hx+h^{2}=(x+h)^{2},} which represents ...

  4. Parent function - Wikipedia

    en.wikipedia.org/wiki/Parent_function

    For example, the graph of y = x 2 − 4x + 7 can be obtained from the graph of y = x 2 by translating +2 units along the X axis and +3 units along Y axis. This is because the equation can also be written as y − 3 = (x − 2) 2. For many trigonometric functions, the parent function is usually a basic sin(x), cos(x), or tan(x).

  5. Translation of axes - Wikipedia

    en.wikipedia.org/wiki/Translation_of_axes

    In mathematics, a translation of axes in two dimensions is a mapping from an xy-Cartesian coordinate system to an x'y'-Cartesian coordinate system in which the x' axis is parallel to the x axis and k units away, and the y' axis is parallel to the y axis and h units away.

  6. Quadratic formula - Wikipedia

    en.wikipedia.org/wiki/Quadratic_formula

    The roots of the quadratic function y = ⁠ 1 / 2 ⁠ x 2 − 3x + ⁠ 5 / 2 ⁠ are the places where the graph intersects the x-axis, the values x = 1 and x = 5. They can be found via the quadratic formula. In elementary algebra, the quadratic formula is a closed-form expression describing the solutions of a quadratic equation.

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    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Drive-thru dinner: 29 fast-food restaurants open on Thanksgiving

    www.aol.com/drive-thru-dinner-29-fast-193416322.html

    White Castle locations will be open until 3 p.m. on Thanksgiving. Ziggi’s Coffee. Ziggi’s Coffee shops will be open until 12 p.m. on Thanksgiving. This article was originally published on ...

  9. Amazon says these are the top 100 Cyber Monday deals ... - AOL

    www.aol.com/lifestyle/amazon-says-these-are-the...

    These pillows are beloved by Amazon shoppers, with 250,000 reviews and a 4.3-star rating. They come in both queen and king sizes, both of which are on sale for Cyber Monday. The queen pillows are ...