asymptote
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
A straight line that a curve approaches but never actually touches, no matter how far it extends.
Test yourself
Which word fits the gap? "The graph of the function has a horizontal _____ at y equals zero."
Answer: asymptote
In your own words, what does "asymptote" mean?
A straight line that a curve approaches but never actually touches, no matter how far it extends.
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