Polynomial Functions: Domain, Range, X-Intercepts, Multiplicity

Which is not true about the domain and range of the polynomial function?

• The domain is all real numbers.

What are the zeros of the function?

• { -5,-3 }

• {-2, -5}

• {0,-5}

• {0,-2}

What are the zeros?

• x = - 4

• There are none

• x = - 1.5 & 1.5

• x = - 3.5 and 3.5

What is the Domain of the function being graphed?

• (-∞, ∞)

• [7, ∞)

• (-∞, 7]

• (-1, 1)

• (-∞, 7)

What is the Range of the function being graphed?

• (-∞, ∞)

• (7, ∞)

• (-∞, 7)

• (-1, 1)

• 1

• 2

• 3

• 4

• 2

• 1

• 4

• 3

Please select the solution that describes if zeros cross or bounce at the x-axis for each x-intercept.

• 2 crosses, 1 crosses, -3 bounce, -4 bounce   

• 1 crosses, -3 bounce, - 4 crosses

• 1 crosses, -3 bounce, -4 bounce 

• 1 bounce, -3 crosses, -4 crosses  

A polynomial function has zeros at -1,2, and 7 (all multiplicity of 1). Write a function rule that could represent this function.

What is the equation in factored form of this graph?

• 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)²(x-2)(x+4)
• f(x) = (x+4)(x+1)²(x-2)(x-4)