The critical points of a cubic equation are those values of x where the slope of the cubic function is zero. They are found by setting derivative of the cubic equation equal to zero obtaining: f â²(x) = 3 ax 2 + 2 bx + c = 0.n other words, a cubic function is defined by a polynomial of degree three. Setting Æ (x) = 0 produces a cubic equation of the form: Usually, the coefficients a, b, c, d are real numbers. However much of the theory of cubic equations for real coefficients applies to other types of coefficients (such as complex ones).
The name Karina is of Russian and Polish origin. The meaning of Karina is pure, chaste. Karina is generally used as a girl's name. It consists of 6 letters and 3 syllables and is pronounced Ka-ri-na.
Video has emerged showing a Mexican model and aspiring television presenter in happier times, shortly before her brutal murder on Friday. Karla Karina Garza Garcia, 23, was killed on Friday with a single gunshot to the head in front of her family in the lawless north-eastern state of Nueva Leon in Mexico. The mother of twoâs murder is believed to be linked to the savage drug cartels that rule the area.