Question

f(x)=x^2-2x-8 find the vertex x-int and y-int

Answer 1

f(x)=(x^2-2x+1)-8-1=(x-1)^2-9
Vertex is (1,-9)
find x intercept let y=0 solve for x
find y intercept let x=0 solve for y

Answer 2

0=(x-1)^2-9 solve this for x
y=(0-1)^2-9 solve this for y