Unit Test — Unit test Answers
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21
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Misha found that the equation –|2x – 10| – 1 = 2 had two possible solutions: x = 3.5 and x = –6.5. Which explains whether or not her solutions are correct?
A
She is correct, because both solutions satisfy the equation.B
She is not correct, because she made a sign error.C
She is not correct, because there are no solutions.D
She is not correct, because there is only one solution: x = 3.5.22
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Aaron solved an inequality and then graphed the solution as shown below. Which inequality did Aaron solve?
A
mc017-2.jpg
B
mc017-3.jpg
C
mc017-4.jpg
D
mc017-5.jpg
23
Which number line represents the solutions to |–2x| = 4?
A
A number line from negative 10 to 10 in increments of 2. Two points, one at negative 4 and one at 2.
B
A number line from negative 10 to 10 in increments of 2. Two points, one at negative 2 and one at 4.
C
A number line from negative 10 to 10 in increments of 2. Two points, one at negative 2 and one at 2.
D
A number line from negative 10 to 10 in increments of 2. Two points, one at negative 8 and one at 8.
24
What is the solution to –2|2.2x – 3.3| = –6.6?
A
x = –3B
x = 3C
x = –3 or x = 0D
x = 0 or x = 325
On a coordinate plane, an absolute value graph has a vertex at (negative 2, 1).
A
Both h and k must be positive.B
Both h and k must be negative.C
h must be positive and k must be negative.D
h must be negative and k must be positive.Did you find these answers helpful?
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