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Masteriza [31]
3 years ago
6

given f(x)=3^x-2 and g(x)=f(3x)+4, write the function rule for function g and describe the types of transformations that occur b

etween function f and function g.
Mathematics
1 answer:
Leviafan [203]3 years ago
5 0

Answer:

g(x)=3^{3x}+2

The transformation that occurs from f(x)\rightarrow g(x) is compression by 3 units horizontally and shift  of 4 units upwards.

Step-by-step explanation:

Given

f(x)=3^x-2

g(x)=f(3x)+4

Translation Rules:

f(x)\rightarrow f(cx)

If c>1 the function is compressed c units horizontally.

If c and c>0  the function stretches c units horizontally.

f(x)\rightarrow f(x)+c

If c>0 the function shifts c units to the up.

If c the function shifts c units to the down.

Applying the rules to f(x)

Step 1

f(x)\rightarrow f(3x)

f(3x)=3^{3x}-2

[compressed 3 units horizontally]

Step 2

f(3x)\rightarrow f(3x)+4=g(x)

f(3x)+4=3^{3x}-2+4

∴ g(x)=3^{3x}+2

[shifts 4 nits up]

∴ The transformation that occurs from f(x)\rightarrow g(x) is compression by 3 units horizontally and shift  of 4 units upwards.

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