Lesson 1.02l
1.02l The modulus Quiz: OCR Maths, Unit 2
20 questions
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Lesson 1.02l, The modulus: 20 multiple choice questions for the OCR Maths (H240), Unit 2: Algebra and Functions, written with Revision Ninja.
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The 20 questions
-
What is the solution set for |x - 2| < 3?
- 1 < x < 5
- -3 < x < 3
- -1 < x < 5
- -5 < x < 1
-
What are the solutions to |x| = 4?
- x = 4 only
- x = 4 or x = -4
- x = 16 or x = -16
- x = -4 only
-
Solve |2x - 1| = 5.
- x = 3 only
- x = 3 or x = 2
- x = 3 or x = -2
- x = -3 or x = 2
-
Solve |x + 2| > 1.
- -3 < x < -1
- x > 1 or x < -1
- x < -3 or x > -1
- x < -1 or x > 3
-
Solve |x - 1| = |2x + 3|.
- x = -2/3 or x = 4
- x = -2/3 or x = -4
- x = 4 only
- x = 2/3 or x = 4
-
Which relation is correct for real a?
- sqrt(a^2) = a
- sqrt(a^2) = -|a|
- sqrt(a^2) = a^2
- sqrt(a^2) = |a|
-
What is |(-2)(3)|?
- 5
- 1
- -6
- 6
-
Which set of real x satisfies |x - 5| <= 2?
- 5 <= x <= 7
- -7 <= x <= 3
- 3 <= x <= 7
- x <= 3 or x >= 7
-
What is |a + b| when a = -3 and b = 5?
- -2
- -8
- 2
- 8
-
Solve |x + 1| < |x - 3|.
- x > 1
- x < 3
- x < 1
- x < -1
-
Which statement is always true for real x?
- |x| = -x
- |x| = x
- |x| < 0 for negative x
- |x| >= 0
-
Solve |2x - 3| <= x.
- 1 <= x <= 3
- 1.5 <= x <= 3
- x <= 1 or x >= 3
- 0 <= x <= 3
-
What is the minimum value of |x - 2| + 1?
- -1
- 0
- 2
- 1
-
Solve |x| + |x - 1| = 3.
- x = -1 or x = 1
- x = -1 or x = 2
- x = -2 or x = 1
- x = 1 or x = 2
-
How many real solutions does |x| = k have when k < 0?
- 0
- 1
- 2
- Infinitely many
-
Solve |x^2 - 4| = 5 for real x.
- x = 9 or x = -9
- x = 3 or x = -1
- x = 3 only
- x = 3 or x = -3
-
How many real solutions does |x - 1| = x - 2 have?
- Infinitely many
- None
- One
- Two
-
Solve |3x + 1| = 2|x|.
- x = -5 or x = -1
- x = -1/5 only
- x = -1/5 or x = -1
- x = 1/5 or x = 1
-
If |x - 4| = 3 has solutions p and q, what is p + q?
- 7
- 8
- 12
- 1
-
Which inequality is equivalent to |x - a| < b, where b > 0?
- a - b < x < b - a
- a - b < x < a + b
- -b < x < b
- b - a < x < a + b
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