Changing Standard to Vertex Form

#5 $$x^2+10x+15$$ When completing the square c =?

(a)  

#6 $$y\ =\ x^2-8x-4$$ When completing the square c = ?

(a)  

#7 $$y\ =x^2+14x-14$$ When completing the square c =?

(a)  

#8 $$y=x^2-6x+17$$ When completing the square c =?

(a)  

#9 $$y=2\left(x^2-6x+11\right)$$ When completing the square c =?

(a)  

#10 $$y=-1\left(x^2-2x-4\right)$$ When completing the square c =?

(a)  

#12 $$y=-1\left(x^2-4x+10\right)$$ When completing the square c = ?

(a)  

Match the following

Vertex of #6 $$y=\left(x-4\right)^2-20$$ is ​ (a)  

Vertex of #7 $$y=\left(x+7\right)^2-63$$ is ​ (a)