Posted in Mathematics category - 17 May 2011 [Permalink]. The IntMath Forum would be the appropriate place for your question. The general form of a quadratic equation is y=ax^2+bx+c . Look no further our experts are here to help. Direct link to andrewp18's post Good question! Or maybe it does have but the image provided is limited so I can't see it touching anything and I can't substitute. Substituting for x and y: 3 = a(-1 - 3)2 - 1 = 3 = a(-4)2 . Method 1 Using the Vertex Formula 1 Identify the values of a, b, and c. In a quadratic equation, the term = a, the term = b, and the constant term (the term without a variable) = c. we are trying to find the equation of the parabola. The inequality is in standard form. So the y-intercept is 19. 3 Point Equation Calculator - Math Celebrity Substitute the vertex's coordinates for h and k in the vertex form. I thought you had to divide the 6 by the 9, except that produces a 3. using the amount of revenues and expenses, we can determine if based on the number of staff and encounters. http://www.sscc.edu/home/jdavidso/Math/Catalog/Polynomials/Fifth/FifthDegreeB.html, https://www.intmath.com/forum/plane-analytic-geometry-37/. (If there are no other "nice" points where we can see the graph passing through, then we would have to use our estimate.). Your work and problems are excellent. Given 3 points, $(x_1, y_1), (x_2, y_2), (x_3, y_3)$, how might I find an equation intersecting all of these points? I can't believe I have to scan my math problem just to get it checked. Quadratic equations have the general form: ax 2 + bx + c = 0 If the "a" coefficient is greater than 0, the parabola is "U-shaped" and if the "a" coefficient is less than 0, the parabola is "-shaped". How I can create an Quadratic equation from this? Set either form to zero and solve the equation to find the points where the parabola crosses the x-axis. I am having trouble calculating the function (ax^2 + bx + c) of a parabola. To find the y-coordinate of the vertex, simply plug the value of -b / 2a into the equation for x and solve for y. You can take x= -1 and get the value for y. Thanks pal really helped me. What is the value of "a"?

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