The answer is: [C]: ________________________________________________ "The graph of the function touches the x-axis at x = 3." ________________________________________________ Explanation: ________________________________________________ Write the function as the following equation: ________________________________________________ x² − 6x + 9 = 0 . _______________________________________ Factor the "left hand side of the equation": _______________________________________ (x −3) (x − 3) = 0 . ________________________________________ → Solution: x = 3 (when y = 0). _______________________________________ The answer is: [C]: ________________________________________ "The graph of the function touches the x-axis at x = 3." _____________________________________________________