Question

How do you write the Vertex form equation of the parabola `y= x^2 - 5x - 4`?

Answer 1

x-coordinate of vertex:
`x = -b/(2a) = 5/2`
y-coordinate of vertex:
`y(5/2) = 25/4 - 5(5/2) - 4 = -25/4 - 100/4 = -125/4`
Factored form:
`3y = (x - 5/2)^2 - 125/4`