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Nuetrik [128]
3 years ago
9

f(x) = 0.2^x is transformed 9 units right, compressed vertically by a factor of 1/6 and reflected across the x-axis. Write the t

ransformed function g(x)

Mathematics
2 answers:
postnew [5]3 years ago
7 0

Answer:

The function g(x) is defined as g(x)=-\frac{1}{6}(0.2)^{x-9}.

Step-by-step explanation:

The given function is

f(x)=-(0.2)^x

The function f(x) transformed 9 units right, compressed vertically by factor of 1/6 and reflected across the x-axis.

The transformation of function is defined as

g(x)=kf(x+b)+c

Where, k is vertical stretch, b is horizontal shift and c is vertical shift.

If b>0, then the graph of f(x) shifts b units left and if b>0, then the graph of f(x) shifts b units right.

If c>0, then the graph of f(x) shifts c units upward and if c>0, then the graph of f(x) shifts c units downward.

The value of b is -9 because the graph shifts 9 units right. The value of k is 1/6. If the graph of function f(x)reflect across x-axis, therefore the function is defined as -f(x).

g(x)=\frac{1}{6}(-f(x-9))

g(x)=-\frac{1}{6}(0.2)^{x-9}            [\because f(x)=-(0.2)^x]

Therefore the function g(x) is defined as g(x)=-\frac{1}{6}(0.2)^{x-9}.

Otrada [13]3 years ago
4 0

Answer:

g(x) = -⅙(0.2)^(x – 9)

Step-by-step explanation:

F(x) = 0.2^x

(a) Transformation to the right

You transform a function 9 units to the right by subtracting 9 from the value of x. Thus, the function becomes

F₁(x) = 0.2^(x – 9)

(b) Vertical compression

To compress a function vertically by a factor of 6, you divide the whole function by 6. Thus, the function becomes

F₂(x) = ⅙F₁(x) =  ⅙(0.2)^(x – 9)

(c) Reflection across x-axis

When you reflect a point (x, y) across the x-axis, the x-coordinate remains the same, but the y-coordinate gets the opposite sign. Thus,

g(x) =  -⅙(0.2)^(x – 9)

The image below shows F(x) and its appearance after each of the operations.

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