IB Mathematics Analysis and Approaches Quiz
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CALCULUS
Question 1
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Let
f
(
x
)
=
1
x
−
1
f(x) = \frac{1}{x-1}
f
(
x
)
=
x
−
1
1
and
g
(
x
)
=
x
2
g(x) = x^2
g
(
x
)
=
x
2
. The composite function
h
(
x
)
=
f
(
g
(
x
)
)
h(x) = f(g(x))
h
(
x
)
=
f
(
g
(
x
))
is discontinuous at which value(s) of
x
x
x
?
A
At
x
=
−
1
x=-1
x
=
−
1
and
x
=
1
x=1
x
=
1
.
B
At
x
=
0
x=0
x
=
0
and
x
=
1
x=1
x
=
1
.
C
At
x
=
1
x=1
x
=
1
only.
D
At no values of
x
x
x
.
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