Question

The quadratic function y=9-x2+4x written in standard form would be?


`y = 9 - x2 + 4x`
​

Answer 1

`y=-x^2+4x+9`

Explanation:

The quadratic function,
`y=9-x^2+4x` is a polynomial of degree 2.

To write a polynomial function in
`x` in standard form, means writing it in decreasing powers of
`x`.

The quadratic function in standard form is

`y=-x^2+4x+9`