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Find the value of that is NOT permitted in the domain of the function .
MATHEMATICS · Single correct · GCSE · Mathematics · Algebra · Algebra
Problem
Find the value of
x
x
x
that is NOT permitted in the domain of the function
f
(
x
)
=
x
+
1
x
−
3
f(x)=\dfrac{x+1}{x-3}
f
(
x
)
=
x
−
3
x
+
1
. (a)
−
1
-1
−
1
(b)
−
3
-3
−
3
(c)
3
3
3
(d)
0
0
0
Related theory
Functions
Rational Functions
Algebra
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