The vertex form of quadratic equation is f(x) = -5(x-1)^2 + 6
Vertex form of a quadratic equation
A quadratic equation is written in its vertex form in order to easily determine the maximum or minimum point on the curve.
The standard vertex form of an equation is given as:
a(x-b)^2 + k
From the given option, we can see that the only eqeuation writen in this form is f(x) = -5(x-1)^2 + 6
Hence the vertex form of quadratic equation is f(x) = -5(x-1)^2 + 6
Learn more on vertex form here: https://brainly.com/question/525947
