Polynomial graphs 2

Which of the following correctly identifies the End Behavior?

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What are the decreasing interval(s)?

• (- ∞, 0) & (2, ∞ )

• (-1, 0) & (2,-4)

• (0,2)

• (0, -4) & (0, 2)

Write a 4th degree polynomial function with:
*a positive leading coefficient
*zeros: 9, 3, -2, 0

• y = x(x - 9)(x - 3)(x + 2)
• y = x(x + 9)(x + 3)(x - 2)
• y = -x(x - 9)(x - 3)(x + 2)
• y = -x(x + 9)(x + 3)(x - 2)

How many real zeros does the function have?

• None
• 2
• 3
• 4

• y =  ^_(x + 2)(x - 1)²
• y = -(x - 2)(x + 1)²
• y = (x - 2)(x + 1)²
• y = -x³