Unit 8. Topic review

What is the degree of the polynomial function
P(x)=3x⁴-7x²-2x⁷-x+4?

• 4
• 7
• 2
• 1

What is the leading coefficient?

• Positive
• Negative
• Odd
• Even

What could be the equation for this graph?

• y = -2x³ + 1x + 3
• y = (x - 2)(x + 1)(x + 3)
• y = (x + 2)(x - 1)(x - 3)
• y = -2x² + 1x + 3

Find the factored form of the function graphed:

• y = -(x + 1)(x - 1)(x - 2)
• y= (x + 1)²(2 - x)
• y = (-x + 1)²(x - 2)
• y = -(x - 1)²(x + 2)

Find a polynomial function of degree 3 with zeros 3i and -2.

• P(x) = x³+2x²+9x+11
• P(x) = x³-2x²+9x+18
• P(x) = x³+2x²+9x+18
• P(x) = x²-3ix+2x-6i

f(x) = x³ - x² - x + 1

Find the zeros of f(x).

• {-1, 0, 1}

• {-1, 1}

• {1}

• {-1}

f(x) = x⁴ - 7x³ + 10x²

Find the zeros of f(x).

• {0, 2, 5}

• {0, 5}

• {-4, 0, 2}

• {0, 5/3, 2}

• A

• B

• C

• D

The function shown has:

• Degree two with negative leading coefficient.

• Degree three with negative leading coefficient.

• Degree four with negative leading coefficient.

• Degree four with positive leading coefficient.

Select all the graphs which show even degree functions.

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