A anthonye Jul 2010 614 5 Sep 29, 2019 #1 Hi; I know standard form, vertex form and intercept form of quadratics. but I don't know what this form is called (x - h)^2 = 4a(y - k) Thanks.

Hi; I know standard form, vertex form and intercept form of quadratics. but I don't know what this form is called (x - h)^2 = 4a(y - k) Thanks.

romsek MHF Helper Nov 2013 6,727 3,030 California Sep 29, 2019 #2 it's a slightly modified vertex form vertex form would be $y = \dfrac{1}{4a}(x-h)^2+k$

Cervesa Dec 2014 153 117 USA Sep 29, 2019 #3 The form $(x - h)^2 = 4p(y - k)$, is a “standard” form written with information to locate the parabola’s focus and directrix ... the focus is $(h, k + p)$ and the directrix is $y = k - p$ Reactions: 1 person

The form $(x - h)^2 = 4p(y - k)$, is a “standard” form written with information to locate the parabola’s focus and directrix ... the focus is $(h, k + p)$ and the directrix is $y = k - p$