Zeros and Intercepts of Polynomial Functions

What are the x-intercepts of the following function?
y = 2(x - 1)(x +3)(x - 4)

• 1, 3 and 4
• 2, 1, -3, and 4
• -1, 3, and -4
• 1, -3, and 4

Tags

CCSS.HSA.APR.B.3

Which standard form function matches the factored form:
y = (x + 1)(x - 3)

• y = x² + x - 3
• y = x - 2
• y = x² - 2x - 2
• y = x² - 2x - 3

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Which standard form function matches the factored form: 
y = (x + 1)(x - 1)(x + 4)

• y = x³ - x² - 4x
• y = x³ + 4x² - x - 4
• y = x³ - 4x² + x + 4
• y = x³ + x² - x - 4

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Which functions readily show the y-intercept of their graphs?

• y = 3x² - 2

• y = 5 - 2x + 3x² + 6x³

• y = 2x(x-4)(x+1)

• y = -3(x+1)(x-5)

Tags

CCSS.8.F.B.4

CCSS.8.SP.A.3

In which functions can you quickly find the x-intercepts of their graphs?

• y = 3x² - 2

• y = 5 - 2x + 3x² + 6x³

• y = 2x(x-4)(x+1)

• y = -3(x+1)(x-5)

What CANNOT be determined by the factors of a polynomial in factored form?

• y-intercept
• x-intercepts
• solutions
• degree of the polynomial

What is another way to say "where a function crosses the x-axis"?

• x-intercept
• zero
• root
• all of these.

Tags

CCSS.HSA.APR.B.3

What are the x-intercepts of 
f(x)=(x - 10)(x + 10)

• 10
• (10 , 0) and (-10 , 0)
• (0, -10) and (0, 10)
• 0

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Which does not describe the zeros of a polynomial?

• Where a graph crosses the x-axis

• Also known as the roots

• Where x=0

• The solution when a factor is set equal to zero

Tags

CCSS.HSA.APR.B.3

What is another word for zeros?

• solutions

• x -intercepts

• roots

• All of the these!