Which statement best describes the effect on the graph of y = (x – 9)2 if the equation is changed to y = (x + 9)2?
A.The graph moves up 18 units.
B.The graph moves down 18 units.
C.The graph moves left 18 units.
D.The graph moves right 18 units.

Question

Which statement best describes the effect on the graph of y = (x – 9)2 if the equation is changed to y = (x + 9)2?
A.The graph moves up 18 units.
B.The graph moves down 18 units.
C.The graph moves left 18 units.
D.The graph moves right 18 units.

anonymous · Answer

x-9=0 means x=9
x+9=0 means x=-9
what do you conclude?

loser66 · Answer

he meant: if y = (x-9)^2, the value of y =0 is x =9 and the graph is |dw:1432514443647:dw|