8
QuizMultiple Choice
Unit Test — Cumulative exam
Question 8 • 2025-2026 FBISD - Precalculus B (CR)
Which function is continuous at x = 18?
Answer
A
f (x) = StartFraction (x minus 18) squared Over x EndFraction
B
f (x) = StartFraction x squared minus 17 x minus 18 Over x minus 18 EndFraction
C
f (x) = tangent (StartFraction pi Over 36 EndFraction x)
D
f (x) = StartLayout Enlarged left-brace first row x squared, x not-equals 18 second row 36, x = 18 EndLayout