How to write an equation from a graph parabola?
A parabola is a type of quadratic equation. A graph parabola looks like a downward-facing U. The equation for a parabola is . If you have a graph parabola and you know the two points that are on the parabola (either the vertex or the focus), you can write the equation from the graph. To do this, use the two points to create two lines that intersect at the vertex or focus of the parabola. The
How to write an equation from a graph parabola with intercept?
If you are able to identify the key points of a graph parabola you can create an equation for it by using the coordinates of the points. The key points for a graph parabola are the vertex, the two points on each side of the vertex, the point where the line crosses the x-axis, and the point where the line crosses the y-axis. The equation for a graph parabola will use these key points to express the graph in terms of the x-
How to write an equation from a graph parabola in slope intercept form?
A graph parabola in slope intercept form is a parabola whose vertex is the origin. It has the form where is the x-coordinate of the vertex, is the y-coordinate of the vertex, is the axis-label for the x-axis, and is the axis-label for the y-axis.
How to write an equation from a graph parabola in point intercept form?
If you have a graph of a parabola in point intercept form, you should be able to write an equation from it without too much difficulty. To do this, you need to find the vertex of the parabola which is at the origin, use the x-coordinate of this vertex as the constant term in the equation, and then plug in the y-coordinates of either end of the parabola as the variables.
How to write
If you’ve drawn a parabola on a graph, you can use a standard equation technique to write it down. Begin by plotting the point of vertex and the two points where the parabola crosses the x-axis. Use the middle of the two points as the focus point (this is the point where the parabola opens up the most).