NO LINKS!!! Please assist me with the problem 5a

Answer:
g(x) = -x +1
Step-by-step explanation:
The transformation that reflects f(x) across the y-axis is replacement of x with -x.
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For f(x) = x +1, replacement of x with -x will perform the desired transformation:
g(x) = f(-x) = (-x) +1
g(x) = -x +1
Reflection across y axis rule
so x turns negative
new one is
g(x)=f(-x)