15
QuizMultiple Choice

N/A — Exam

Question 15 • Algebra II

Which step is included in the graph of the function f of x is equal to lceil x minus 1 rceil ?

Answer
A
y is equal to negative 2 for negative 2 is less than or equal to x comma x is less than negative 1
B
y is equal to negative 5 for negative 4 is less than or equal to x comma x is less than negative 3
C
y is equal to negative 2 for negative 2 is less than x comma x is less than or equal to negative 1
D
y is equal to negative 5 for negative 4 is less than x comma x is less than or equal to negative 3

Explanation

The ceiling function rounds its input up to the nearest integer. For f(x) = ⌈x − 1⌉ to equal −2, the quantity x − 1 must be greater than −3 and at most −2. Adding 1 gives −2 < x ≤ −1, which matches choice C: y = −2 for −2 < x ≤ −1.

AI-written and checked against the verified answer.

Previous
Next