5. A family of cubic functions is defined as fx (x) = k?x? – kot2 + x, ke Zt. (a) Express in terms of k (i) f'k (x) and
Posted: Sat Feb 26, 2022 10:57 am
5. A family of cubic functions is defined as fx (x) = k?x? – kot2 + x, ke Zt. (a) Express in terms of k (i) f'k (x) and f "x(x); the coordinates of the points of inflexion Pk on the graphs (b) Show that all Pk lie on a straight line and state its equation. Show for all k, the tangents to graphs offk at Pk are parallel, & find the equation of tangent line