1. Determine the graph behavior at the zero(s) of the polynomial function f(x)=x^2 - 6x + 9.

1 answer:

7 0

The answer is: [C]:
________________________________________________
      "The graph of the function touches the x-axis at x = 3."
________________________________________________
Explanation:
________________________________________________
Write the function as the following equation:
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   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."
_____________________________________________________

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