Find g(x), where g(x) is the reflection across the y-axis of f(x)=–5|x+10|+2.
Question
Find g(x), where g(x) is the reflection across the y-axis of f(x)=–5|x+10|+2.
Solution
To find g(x), the reflection of f(x) across the y-axis, we need to replace every x in the function f(x) with -x.
So, f(x) = -5|x + 10| + 2 becomes g(x) = -5|-x + 10| + 2.
This is because when we reflect a function across the y-axis, the x-coordinates of the points on the function change sign.
So, g(x) = -5|-x + 10| + 2 is the reflection of f(x) = -5|x + 10| + 2 across the y-axis.
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