Practice variation 2 of 3
Differential equation — Where slopes vanish
Your question
For , where are the slope marks horizontal (away from )?
This practice question was inspired by Question 7 in the 2020 NSW HSC Mathematics Extension 1 examination, © NESA. It is an original TestMum variation that practises the same mathematical idea, not an official NESA question.
Before you check
- Have you stated every choice or assumption?
- Can another student follow each line?
- Did you verify the final result independently?