Verified Answer :
For this case we have transformation of functions:
Reflection is the mirror image of a figure. It can also be defined as the turning of points and graphs around the axes.
So, we have:
To graph \(y = f (-x)\), the graph of \(y = f (x)\) is reflected on the y-axis. (Horizontal reflection)
If \(f (x) = 2x\), to obtain g (x) as a horizontal reflection, we evaluate
\(g (x) = f (-x)\)
Thus:
\(g (x) = f (-x) = 2 (-x)g (x) = - 2x\)
Answer:
\(g (x) = - 2x\)
See attached image
The graph that represents the reflection of f(x)=2x is g(x)=-2x.
The given function is:
\(f(x)=2x\)
How horizontal reflection or reflection about the y-axis takes place?
If graph of a function f(x) is reflected about y-axis, f(x) becomes f(-x).
So, g(x) = f(-x)
Given f(x) =2x
So, f(-x) =-2x
So, g(x) =-2x
So, the required function is g(x) =-2x which is a straight line with a negative slope passing through the origin.
Thus, the graph that represents the reflection of f(x)=2x is g(x)=-2x.
To get more about graphs visit:
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