Question

Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = –8x + x2 + 7 ?

A. left 4, down 9
B. left 4, up 23
C. right 4, down 9
D. right 4, up 23

Answer 1

Find the zeros by factoring
Y=(x-7)(x-1)
X=7
X=1
Find axis of symmetry
1+7/2
8/2
X=4
Sub into equation
(4-7)(4-1)
(-3)(-3)
Y=9
Vertex: (4,-9)
The Answer is C