Curriculum
Course: Pure Mathematics — Second Secondary
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Curriculum

Pure Mathematics — Second Secondary

Unit 1: Real Functions and Curve Sketching

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Unit 2: Exponents and Logarithms

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Unit 3: Limits

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Unit 4: Trigonometry

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Quiz

The Inverse Function — Lesson quiz

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  • Questions count: 2
  • Passing grade: 60%
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1.
Does f(x) = |x| have an inverse on all real numbers?
Yes, because |x| is always positive
Yes, because its outputs are never negative
Yes, because |x| reverses the sign of x
No, because |2| = |−2| = 2, so f is not one-to-one
2.
If (1, 4) lies on the graph of f, which point lies on the graph of f⁻¹?
(1, 4)
(4, 1)
(−1, 4)
(4, −1)
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