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D05 Math
Question 36
2021 April(D05) Math Question 36
Algebraic & Function Expressions
- Nested Functions
Composite functions
Choice F
h
(
f
(
x
)
)
=
2
f
(
x
)
+
3
h(f(x))=2f(x)+3
h
(
f
(
x
))
=
2
f
(
x
)
+
3
=
2
(
−
x
−
4
)
+
3
=2(-x-4)+3
=
2
(
−
x
−
4
)
+
3
=
−
2
x
−
5
=-2x-5
=
−
2
x
−
5
Skills you are tested for:
Composite functions
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