Question

The equation y2−4y−x+9=0 represents a parabola.

Rewrite the equation of this parabola in standard form.

Answer 1

Not +9

Answer 2

is it y-2

Answer 3

Ye that part is right

Answer 4

-9

Answer 5

No

You just need to complete the square here

\(y^2-4y+~? = x-9+~?\)
\(ax^2+bx+c\) -- Left side of equation


Basically use \((\dfrac{b}{2})^2\) to find what to add [= 4]
Use \((\dfrac{b}{2})\) to find the root/factor [Which was -2]

\(y^2-4y+4 = x-9+4\)

Now factoring

\((y-2)^2= x -5\)

And now just get the -5 to the other side of the eq => then answer

Answer 6

+5

Answer 7

Ye