Examples and practice
When does an inverse exist?
Back to lessonPractice section 1 · Questions 1–6
Distinguish vertical and horizontal line tests · Choose an injective restriction without hiding ambiguity · +4 more
Practice section 2 · Questions 7–12
A restricted parabola and its inverse · Restrict a quadratic and sketch its inverse · +4 more
- A restricted parabola and its inverse
- Restrict a quadratic and sketch its inverse
- Restrict a parabola and test an inverse composite
- Use a restricted quadratic, reflection and a fixed-point condition
- Invert a restricted logarithm and carry its range into a cubic
- Invert a piecewise function with a gap in its range