AnswersLUSD-Int Math 2A LT2 Rational and Irrational Numbers A-GCompleting the SquareQuestion 2
2
QuizMultiple Choice

Completing the Square

Question 2 • LUSD-Int Math 2(A) LT2 Rational and Irrational Numbers (A-G)

Which function in vertex form is equivalent to f(x) = x2 + 6x + 3?

Answer
A
f(x) = (x + 3)2 + 3
B
f(x) = (x + 3)2 − 6
C
f(x) = (x + 6)2 + 3
D
f(x) = (x + 6)2 − 6

Explanation

Complete the square: x² + 6x + 3 = (x² + 6x + 9) + 3 − 9. The first three terms make (x + 3)², so the function is f(x) = (x + 3)² − 6. This matches choice B.

AI-written and checked against the verified answer.

Previous
Next

More from this Course

Quiz
15 verified answers

Completing the Square (Continued)

Quiz
15 verified answers

Completing the Square

Quiz
12 verified answers

Modeling with Quadratic Functions