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Question
Math
Posted 4 months ago

Starting with the graph of f(x)=9xf(x)=9^{x}, write the equation of the graph that results when:
(a) f(x)f(x) is shifted 5 units downward. y=y=
(b) f(x)f(x) is shifted 2 units to the left. y=y=
(c) f(x)f(x) is reflected about the xx-axis. y=y=
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Answer from Sia
Posted 4 months ago
Solution by Steps
step 1
To shift the graph of f(x)=9xf(x) = 9^x 5 units downward, we subtract 5 from the function
step 2
The new equation is y=9x5y = 9^x - 5
Answer
y=9x5y = 9^x - 5
step 1
To shift the graph of f(x)=9xf(x) = 9^x 2 units to the left, we replace xx with x+2x + 2
step 2
The new equation is y=9x+2y = 9^{x + 2}
Answer
y=9x+2y = 9^{x + 2}
step 1
To reflect the graph of f(x)=9xf(x) = 9^x about the xx-axis, we multiply the function by -1
step 2
The new equation is y=9xy = -9^x
Answer
y=9xy = -9^x
Key Concept
Graph Transformations
Explanation
Shifting a graph vertically involves adding or subtracting a constant to the function. Shifting horizontally involves replacing xx with x+cx + c or xcx - c. Reflecting about the xx-axis involves multiplying the function by -1.

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