Write the function rule​ g(x) after the given transformations of the graph of ​f(x)=−9x.reflection in the y​-axis; vertical compression by a factor of 1/3

f(x) = -9x

reflect in y: -9(-x) = 9x
vcomp: 1/3 (9x) = 3x
g(x) = 3x

I suspect a typo, but hey, It's not my job to figure out what you mean.
It's your job to say it so clearly you cannot be misunderstood.

It was actually, my bad and thank you for the help 🙏