Locating Roots of a Function

Quiz
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
Barbara White
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the solutions of the equation x2 - 16 = 0 by extracting the square root.
x = 4 and x = -4
x = 4
x = -4
no answer
Tags
CCSS.HSA-REI.B.4B
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the roots of the quadratic equation 2s2 = 50.
s = 25 and s = -25
s = 5 and s = -5
s = 5 and s = 25
s = -5 and s= -25
Tags
CCSS.8.EE.A.2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What equation has the roots of x = 7 and x = -7?
x2 - 14 = 0
x2 - 49 = 0
x2 + 49 = 0
x2 = 14
Tags
CCSS.HSA-REI.B.4B
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the roots of the quadratic equation (s - 4)2 - 81 = 0?
s = 9/2 and s = -9/2
s = 9 and s= -9
s = 2 and s = -2
s = 13 and s = -13
Tags
CCSS.HSA-REI.B.4B
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the roots of the quadratic equation 3t2 = 12?
t =4 and t = -4
t = 2 and t = -2
t = 3 and t = -3
t = 9 and t = -9
Tags
CCSS.8.EE.A.2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following quadratic equations can be solved by extracting square roots?
x2 + 3x – 4 = 0
x2 – 36 = 0
(x + 1) (x – 3)
2x2 – 5x – 7 = 0
Tags
CCSS.HSA-REI.B.4B
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the solution of the equation a2 – 60 = 21?
positive or negative 4
positive or negative 6
positive or negative 7
positive or negative 9
Tags
CCSS.8.EE.A.2
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