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

Third option: The graph moves left 18 units.

Step-by-step explanation:

Some transformations for a function f(x) are shown below:

If , the function is shifted up "k" units.

If , the function is shifted down "k" units.

If , the function is shifted left "k" units.

If , the function is shifted right "k" units.

In this case, we can observe that graph of is changed to

Since:

We can conclude that the function is shifted left 18 units to get the function .

answer: idk

step-by-step explanation: