
Solving Absolute Value Equations with Extraneous Solutions
Authored by Barbara White
Mathematics
9th - 11th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Solve |2x –3| + 5 =10.
Select all of the valid solutions,
do not select if the solution is extraneous
–1
4
1
–4
2
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
solve:
3| −8x| + 8 = 80
{−7/3, 7/3}
{−3,3}
{11/3,−11/3}
No Solution
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
solve: |−2n| + 10 = −50
{30, −30}
{20,−20}
{−5,5}
No Solution
4.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Solve.
4| x + 9 | = 20
Select all of the valid solutions,
do not select if the solution is extraneous
x = −14
x = −4
x = 4
x = 14
x = −3
5.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
solve
|−2n| + 10 = 50
Select all of the valid solutions,
do not select if the solution is extraneous
n = 20
n = −20
n = −5
No Solution
n = 5
6.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Solve
|x – 12| − 3 = 11
Select all of the valid solutions,
do not select if the solution is extraneous
−2
26
3
4
2
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
solve: 2|x – 12| − 6 = 22
−2, −26
−2, 26
3, 25
4, −7
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