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  2. Parabola | Definition, Formula & Examples - Lesson | Study.com

    study.com/learn/lesson/parabola-equation-graphing-examples.html

    The easy parabola definition is a U-shaped curved line. A parabola consists of a vertex, the point where it changes direction, and the point of the parabola that is on the axis of symmetry (an ...

  3. Identifying the Direction a Parabola Opens from the Equation

    study.com/skill/learn/identifying-the-direction-a-parabola-opens-from-the...

    How to Identify the Direction of Opening of a Parabola From its Equation: Standard Form Example. Determine the parabola's direction of opening: {eq}f (x)=3x^2-6x+4 {/eq} Step 1: To start ...

  4. Parabola | Equation, Formula & Examples - Lesson | Study.com

    study.com/academy/lesson/how-to-write-the-equation-of-a-parabola-in-standard...

    The equation for a leftward-opening parabola (the focus is to the left of the vertex) is (y − k) 2 = − 4 p (x − h). In all four forms, p is the focal length and (h, k) is the vertex. So, the ...

  5. Types of Parabolas | Overview, Graphs & Examples - Study.com

    study.com/academy/lesson/parabolas-in-different-forms.html

    There are two types of parabolas, positive (opening up) or negative (opening down). A parabola has many key features including a vertex, x-intercept (s) and y-intercept. A vertex is the highest or ...

  6. Directrix & Focus of a Parabola | Equation & Examples

    study.com/academy/lesson/the-focus-and-directrix-of-a-parabola.html

    A parabola is a 2-dimensional U-shaped curve. It is the graph of a quadratic equation {eq}y = ax^2 + bx + c {/eq}. A parabola can face upwards or downards. The point that is the maximum of a ...

  7. Parabola | Definition & Parabolic Shape Equation - Lesson -...

    study.com/learn/lesson/parabolic-shape.html

    A parabola is a curve in which each point on the curve is equidistant from another point called a focus and a straight line called a directrix. A parabola equation has the parent equation of y=x^2 ...

  8. C-Value | Definition, Standard Form & Examples - Lesson -...

    study.com/academy/lesson/c-value-definition-lesson-quiz.html

    Example. Graph the equation of a parabola, y = x^2 + 2x - 1, and identify its vertex and axis of symmetry. Step 1: Identify first the coefficients in the given equation. The coefficients are: a ...

  9. Axis of Symmetry | Definition, Equation & Examples

    study.com/academy/lesson/find-the-axis-of-symmetry-equation-formula-vertex.html

    The quadratic equation for the parabola in Figure 3 is x 2 + 4x + 6. The quadratic equation for the parabola in Figure 4 is -x 2 + 6x - 8. We can also use these quadratic equations to find the ...

  10. Parabola in Standard Form | Graphing, Rules & Examples

    study.com/academy/lesson/writing-standard-form-equations-for-parabolas...

    Example of a Parabola. The equation of a parabola can be expressed in standard form and vertex form. The standard form of a parabola is. y = a x 2 + b x + c where a, b, and c are constants, and a ...

  11. X & Y Intercepts of a Parabola | Graph and Quadratic Equation

    study.com/learn/lesson/parabola-intercept-form.html

    The intercept form parabola is obtained by factoring the function in standard form. For example, write the following functions in intercept form. y = x 2 + 10 x + 25. This expression is equivalent ...