ACT Math Quiz
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PREPARING FOR HIGHER MATH
Question 1
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Given
f
(
x
)
=
2
x
−
1
x
+
3
f(x)=\dfrac{2x-1}{x+3}
f
(
x
)
=
x
+
3
2
x
−
1
, what is
f
(
1
)
f(1)
f
(
1
)
? Substitute
x
=
1
x=1
x
=
1
:
f
(
1
)
=
2
(
1
)
−
1
1
+
3
f(1)=\dfrac{2(1)-1}{1+3}
f
(
1
)
=
1
+
3
2
(
1
)
−
1
.
A
1
4
\dfrac{1}{4}
4
1
B
1
3
\dfrac{1}{3}
3
1
C
2
4
\dfrac{2}{4}
4
2
D
1
5
\dfrac{1}{5}
5
1
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