PreCalc · Chapter 2
Master the
Tricky Parts
20 carefully chosen problems covering holes, asymptotes, intercepts, and slant asymptotes — the concepts most students get wrong on exams.
Key FACTOR → cancel → HOLE
Key degree↑ → SLANT, degree= → HA ratio
Key VA: denominator = 0 (after cancel)
Key HA: compare leading degrees
Trick hole ≠ x-intercept!
Trick y-int: plug in x=0