If a point on a line is already known, what else is needed in order to create an equation
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An Airy equation is an equation in mathematics, the simplest second-order linear differential equation with a turning point.
Another straight line equation is needed such that both simultaneous equations will intersect at one point.
Substitute the first of the ordered pair wherever x appears in the equation and the second value wherever you have y. Evaluate the equation. If it is true, then the point is on the line and if not, it is not.
In a linear (first-order) equation, it is the ratio of the change in y of a segment to the change in x of the same segment. If the equation is in the form y = mx + b, m is the slope. In a higher-order equation, the instantaneous slope is the slope of the tangent line intersecting a particular point along the curve.
Substitute the coordinates of the point into the equation and if the result is a true statement then the point is a solution, and if not it isn't.