Restrict Domain to Make Invertible
Algebra · Flashcards · Recall
ALGEBRA · FLASHCARDS
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QUESTION
What condition must a function satisfy to have an inverse function (as a function)?
QUESTION
Which domain restriction makes
f
(
x
)
=
x
2
f(x)=x^2
f
(
x
)
=
x
2
invertible and uses the negative branch?
QUESTION
What is the vertex
x
x
x
-value used to split a parabola
f
(
x
)
=
a
(
x
−
h
)
2
+
k
f(x)=a(x-h)^2+k
f
(
x
)
=
a
(
x
−
h
)
2
+
k
into one-to-one halves?
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ANSWER
x
=
h
x=h
x
=
h
. The vertex divides the parabola into symmetric halves.
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