Question

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

Answer 1

Answer:

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

Step-by-step 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

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