Shortcut: The vertex formula
Shortcut: The vertex formula
Lessons

2.
Converting general form into vertex form by applying the vertex formula
Convert each quadratic function from general form to vertex form by using the vertex formula.
b)
$y =  3{x^2}  60x  50$

c)
$y = \frac{1}{2}{x^2} + x  \frac{5}{2}$

d)
$y = 5x  {x^2}$