1955 AMC 12 Problem 49
Attempt Problem 49 of the 1955 AMC 12 below, then check your answer against the professionally curated solution from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 1955 AMC 12 solutions, or check the answer key.
All problems are used with official legal permission of the Mathematical Association of America (MAA).
49.
The graphs of and intersect in:
one point whose abscissa is
one point whose abscissa is
no points
two distinct points
two identical points
Answer: C
Small Hint:
Factor , but keep the original restriction
Big Hint:
Compare the algebraic intersection of the simplified lines with that domain restriction
Solution:
For The lines and would meet at But is excluded from the original rational function, so that point is a hole and there is no intersection.
Thus, the correct answer is C.