Find the Zero's Quiz

Find all the zeros of f(x) = x³ -3x² + x - 3

• 3 and -1
• 1 and - 3
• 3, i, and -i
• 3 and i

Mariah is told -13 is a zero of x³ + 8x² - 89x - 312.  Find the other zeros.

• -3, 8
• -2, 12
• -1, -5

Is (x-8) a factor of 
(x³-15x²+51x+30)

• No
• Yes

Tags

CCSS.HSA.APR.B.2

Find all rational zeros, one zero has been given.
f(x) =x³-3x²-25x+75; 5

• 5,-3,5
• 5,5,5
• 3,-5,5
• 1,1,1

f(x)=(x+4)(x-3)(x-2)
List the zeros for this function.

• x=-4, x=3, x=-2
• x=-4, x=3, x=2
• x=-4, x=-3, x=2
• x=4, x=3, x=2

Tags

CCSS.HSF-IF.C.7C

How many zeros does the polynomial function
 P(x) = 3x⁴+4x-8 have?

• 1
• 2
• 3
• 4

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

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

Tags

CCSS.HSF-IF.C.7C

State the zeros of the polynomial (include multiplicity):
f(x) = x(x+3)²(x - 2)

• x = 0, 3, 2
• x = 0, -3 (multiplicity of 2), 2
• -3, 2
• 0, 2 (multiplicity of 3)

Divide using synthetic division.
2x³ - 5x - 7 ÷
x - 2

• 2x³ - 4x² + 3x - 13
• 2x³ + 4x² +3x - 1
• 2x² - 4x + 3 - 13/x-2
• 2x² + 4x + 3 - 1/x-2

Divide using synthetic division:
(x³ - 11x² +19x + 67) ÷ (x - 7)

• x² - 4x - 9 + 4/(x-7)
• x² - 4x - 10 + 2/(x-7)
• x² - 4x - 12 + 5/(x-7)
• x² - 4x - 12 + 1/(x-7)