Question

What is the vertex of (3,-3)

Answer 1

Question:

Solution:

Note that the standard quadratic form of a quadratic polynomial is given by the following equation:

`ax^2+bx+c\text{ = }y`

so that, the vertex form of a quadratic equation is

`y\text{ = a(}x-h)^2+k`

where (h,k) is the so-called vertex. Thus, according to this, we can say that the equation that represents a vertex (h,k)=(3,-3) is

`y\text{ = 5(}x-3)^2\text{-}3`

then, we can conclude that the correct answer is:

`y\text{ = 5(}x-3)^2\text{-}3`