1. Differentiating

2. Rules
Your task, in teams, is to answer the differentiation question on the screen.
3 possible answers will be given for each problem.
Select the solution that you believe to be correct, by placing your post-it on the answer.
5 Points are awarded for a correct answer.
Bonus points will also be awarded as follows:
3 points for being the first team to select the correct answer
2 Points for the second team
1 Point for the third.
Only 5 minutes per round, or less if each team has answered.
Speed and accuracy is therefore important.
Good luck!

3. Differentiate: 𝑓 𝑥 = 𝑥 2 𝑥−2
Round One
Differentiate: 𝑓 𝑥 = 𝑥 2 𝑥−2
𝑥 2 −4𝑥 𝑥−2 2 2𝑥
𝑥(2−𝑥) 𝑥−2

4. Judges
Differentiate:
Cancelling Error!
Cancelling Error!

5. Round Two
Differentiate:

6. Expansion error on the numerator
Judges
Differentiate:
Did UV’ – VU’
Not VU’ – UV’
Expansion error on the numerator

7. Round Three
Find the value of dy/dx at (1, 0.25) for:

8. You’ve not differentiated!
Judges
Find the value of dy/dx at (1, 0.25) for:
UV’ – VU’ not VU’ – UV’
You’ve not differentiated!

9. Round Four
Differentiate:

10. Negative error on numerator Forgot to square v on the denominator
Judges
Differentiate:
Negative error on numerator
- x - = + !!
Forgot to square v on the denominator

11. Round Five
Differentiate:

12. Did VV’ – UU’ not VU’ – UV’ Mistake when squaring v on denominator
Judges
Differentiate:
Did VV’ – UU’ not VU’ – UV’
Mistake when squaring v on denominator