week5(10/08)Parabola

Parabola1


Parabola2


the pair of tangents from a given point to the parabola


pair of tangents and the focus, construct the parabola


the focus, a tangent and the point


the focus and 2 tangents


the focus and the point


parabola tangent to a fixed circle having a fixed diameter as axis


the quadratic polynomial passing through three given points no two of which have the same abscissa


the cubic polynomial passing through four given points no two of which have the same abscissa


Given coefficients a,b,c,d, construct the graph of the cubic polynomial


a chain of four tangential circles to the case of graphs of quadratic polynomials