(moment/area) integral of x(dA)/itegral of dA for the x coordinate (integral of y(dA)/itegral of dA for the y coordinate
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You need more than one tangent to find the equation of a parabola.
Select a set of x values and find the value of y or f(x) - depending on how the parabola is defined. These are the values that you need to graph.
The x-coordinate of the centroid is the arithmetic mean of the x-coordinates of the three vertices. And likewise, the y-coordinate of the centroid is the arithmetic mean of the y-coordinates of the three vertices. Thus, if A = (x1, y1), B = (x2, y2) and C = (x3, y3) then the coordinates of the centroid, G = [(x1,+ x2 + x3)/3, (y1 + y2 + y3)/3].
u look at it.... :-) hey I'm learning about parabolas too
A parabola opening up has a minimum, while a parabola opening down has a maximum.