Create a free account now and get 3 full lessons, completely free. Get my 3 free lessons

Practise online insteadThe answer key prints on page 2.

Find a value of an inverse function

Year 11 maths · Fieldbook Learning

Name ______________________ Date __________

Find the x that gives the value c.

f(x) = −5x − 3. Find f⁻¹(−3).
f(x) = 4x + 2. Find f⁻¹(18).
f(x) = 5x + 7. Find f⁻¹(52).
f(x) = −x + 3. Find f⁻¹(5).
f(x) = 3x + 3. Find f⁻¹(24).
f(x) = x − 6. Find f⁻¹(−13).
f(x) = −6x + 1. Find f⁻¹(−29).
f(x) = −6x + 4. Find f⁻¹(−50).
f(x) = −6x − 7. Find f⁻¹(−55).
f(x) = 3x + 9. Find f⁻¹(18).
f(x) = −2x + 4. Find f⁻¹(−6).
f(x) = 2x + 8. Find f⁻¹(22).
f(x) = x − 4. Find f⁻¹(−9).
f(x) = 2x + 3. Find f⁻¹(−7).
f(x) = x + 5. Find f⁻¹(13).
f(x) = 3x − 2. Find f⁻¹(−20).
f(x) = −3x − 4. Find f⁻¹(−1).
f(x) = 5x − 7. Find f⁻¹(−37).
f(x) = −3x + 1. Find f⁻¹(−17).
f(x) = x + 3. Find f⁻¹(−6).

Play it as a quiz game

13 of these questions as multiple choice, with near-miss wrong answers, ready for Kahoot or Blooket.

Download the game's own question template: in Kahoot, Add question → Import spreadsheet; in Blooket, Create a set → Spreadsheet import.
Click the matching button below, then click the first empty question row of the template and paste.
Save the template (Kahoot needs .xlsx, Blooket .csv) and upload it.

Answer key: Find a value of an inverse function

0
4
9
-2
7
-7
5
9
8
3
5
7
-5
-5
8
-6
-1
-6
6
-9