Question

How do you find the vertex of `-20(y+5)=(x+9)^2`?

Answer 1

`"vertex "=(-9,-5)`

Explanation:

`"using the translated form of the equation of a parabola"`

`•color(white)(x)(x-h)^2==4p(y-k)`

`"where the vertex "=(h,k)`

`(x+9)^2=-20(y+5)" is in this form "`

`"with "h=-9" and "k=-5`

`rArrcolor(magenta)"vertex "=(-9,-5)`