10
QuizMultiple Choice

Absolute Value Functions

Question 10 • Common Core Algebra I B-IC

What is the vertex of f(x) = |x + 8| – 3?

Answer
A
(–8, –3)
B
(–8, 3)
C
(8, –3)
D
(8, 3)

Explanation

The vertex form of an absolute value function is f(x) = |x − h| + k, with vertex (h, k). Here, |x + 8| − 3 = |x − (−8)| + (−3), so the vertex is (−8, −3), choice A.

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