Finding Zeros of Polynomials Given One

Quiz
•
Mathematics
•
11th Grade
•
Hard
+2
Standards-aligned
Anthony Clark
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Given one complex zero use the conjugate root theorem to find another. Zero is 7-5i
-7+5i
7-5i
-7-5i
7+5i
Tags
CCSS.HSN.CN.A.3
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find all rational zeros, one zero has been given.
f(x) = x3-3x2-x+3; 3
2,4,3
-1,1,3
3,2,1
4,5,6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
One zero of 3x3-4x2-28x-16 is 4.
What is another zero?
8
-2
6
1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find all the real zeros of the function
f(x) = 2x3 - 19x2 + 38x + 24 given that x-4 is a factor.
x = 1/2, -6
x = -1/2, 6
x = 4, -1/2, 6
x = -4, 1/2, -6
Tags
CCSS.HSA.APR.B.2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Factor:
x3-12x2+47x-60=0 when 5 is a root.
(x-3)(x-4)(x-5)=0
(x+1)(x-4)(x-5)=0
(x-3)(x-4)(2x-5)=0
(x-5)(x-4)(x-5)=0
Tags
CCSS.HSA.APR.B.2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How could you determine if x-2 is a factor of 2x³-5x²+x-2?
Use synthetic division and see if the quotient is even
Ask the person sitting next to me
Use synthetic division and see if the remainder is zero
Flip a coin
Tags
CCSS.HSA.APR.D.6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find all zeroes given a factor of (x+3). f(x) = 2x3 + 5x2 - 6x - 9
-1,-3,-3
-1,-3,3/2
3,3,3
-3,2/3,-1
Tags
CCSS.HSF-IF.C.7C
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