Suppose f(x)=1/9x^2.

find a formula for y = f(x-15) in terms of the variable x.

y=f(x-15)=

Dburgess66 Apr 7, 2020

#1**+2 **

Plugging in "x-15" into f(x)= 1/9x^2, 1/9(x^2-30x+225)=

**\(x^2-30x+225\over9\)**

Hope it helps!

HELPMEEEEEEEEEEEEE Apr 7, 2020

#4**+1 **

I apologize helpmeeeeeee

You did not.

I think the asker may have though.

1/9x^2 = \(\frac{1}{9}*x^2\) (as helpmeeeee interpreted it)

but I think the asker may have meant

1/(9x^2)

Maybe he/she didn't but we are so used to seeing brackets used poorly that we often surmise what is wanted.

For that reason, it is a good idea to put brackets in even when they are not strictly necessary.

It cuts down on confusion.

Perhaps in this instance, it is me that is wrong, but still, I hope I give readers something to think about.

Melody Apr 7, 2020