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Algebra Help? One question?
3. Use the function to answer the question.
f(x) = 4|x + 1| - 6
What is the vertex of the graph of f(x)?
(Points : 4)
(-1, -6)
(-1, 6)
(1, -6)
(4, -6)
I'm confused
1 Answer
- mecdubLv 78 years agoFavorite Answer
(-1, -6).
The vertex of a function f(x) = a|x - h| + k is (h, k).
Basically switch the sign on the number added or subtracted inside the absolute value signs to get the x coordinate and keep the sign the same on the number added or subtracted on the outside to get the y coordinate.
"h lies, k tells the truth"
