Polynomial Test Review Fall 2021

Which quadratic graph has imaginary roots?

• 
• 
• 
• 

Which of the following would be the correct factored form with roots 2, 5i, and 6?

• (x-6)(x-2)(x+5i)(x-5i)

• (x+6)(x+2)(x+5i)

• (x-6)(x-2)(x-5i)

• (x+6)(x+2)(x-5i)

What type of roots does the polynomial have?

• Three real

• One real, and two imaginary

• Two real, and one imaginary

• Three imaginary

Given the polynomial below, how many roots will it have?
 $y=-2x^5+4x^2-x$  

• 2

• 3

• 5

• 1

What is the factored form of the function graphed?

• y = -(x+6)(x-5)(x-8)

• y = -(x-6)(x+5)(x+8)

• y = -(x-5)(x-8)

• y = -(x+6)(x-5)

If the graph of a function crosses the x-axis, what does that mean about the multiplicity of that zero?

• Even

• Odd

• None

If the there is a turning point on the x-axis, what does that mean about the multiplicity of that zero?

• Even

• Odd

• None

What are the
zeros of the polynomial
y = 3(x + 4)(x + 1)(x - 3)?

• -4, -1, 3
• 3, -3, 4, 1
• 4, 1, -3
• 3, -4, -1, 3

Which of the following could be the equation of this graph in factored form? (Careful-pay attention to multiplicity.)

• f(x) = (x-4)(x-1)²(x+2)(x+4)

• f(x) = (x-4)(x+1)²(x+2)(x+4)

• f(x) = (x+4)(x+1)(x-2)(x+4)

• f(x) = (x+4)(x+1)²(x-2)(x-4)

In the above graph, which root has a multiplicity of 2?

• -1

• -3

• -120

• 4