Question

I need help with this question please. This is non-graded.

Answer 1

Step-by-step explanation

The standard form of a quadratic equation is the following:

`y=ax^2+bx+c`

Where a, b and c are numbers. In this case we are given a quadratic equation in vertex form:

`y=(x-4)^2-16`

We can expand the squared binomial:

`\begin{gathered} y=x^2-2\cdot4\cdot x+(-4)^2-16 \\ y=x^2-8x+16-16 \\ y=x^2-8x \end{gathered}`Answer

Then the answer is the second option.