Solving for the Roots
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3x2 = 12
± 2
2
± √12
± 4
Tags
CCSS.8.EE.A.2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by taking square roots:
5b2 - 4 = 41
b = 9, b = -9
b = 3, b = -3
b = 8, b = -8
no solution
Tags
CCSS.HSA-REI.B.4B
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What should you do first in solving this equation?
x2 + 6x - 13 = 3
Get factored form
Write down: a=1, b=6, c=-13
Make it equal 0 by subtracting 3 on each side
Type it all in a calculator.
Tags
CCSS.HSA-REI.B.4B
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Convert x2-9x+20 to factored form and solve.
(x-10)(x+2); x=-2, 10
(x+4)(x+5); x=-5, -4
(x-4)(x-5); x=4, 5
Not factorable
Tags
CCSS.HSA-REI.B.4B
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What are the zeros?
x= 0 and x= -4
x= 0 and x= 4
y= 0
x= 2
Tags
CCSS.HSA.APR.B.3
6.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Solve
4000
20
2165
200
Tags
CCSS.HSA.REI.A.2
7.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Solve
243
1
3
729
Tags
CCSS.HSA.REI.A.2
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