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Find g(x), where g(x) is the reflection across the y-axis of f(x)=–10x+9.g(x)=–10x–9g(x)=10x+9g(x)=–10x+9g(x)=10x–9Submit

Question

Find g(x), where g(x) is the reflection across the y-axis of f(x)=–10x+9.g(x)=–10x–9g(x)=10x+9g(x)=–10x+9g(x)=10x–9Submit

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Solution

The reflection of a function across the y-axis is found by replacing x with -x in the function. So, if f(x) = -10x + 9, then g(x), the reflection of f(x), is found by replacing x with -x.

So, g(x) = -10(-x) + 9 = 10x + 9.

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