Question 34025
when it says to write a rule for each function,
you have to write an expression which will give you the required value for f(x) when you substitute x
<P>
meaning,
         x       f(x)
       -1          -9
        0          -5
        1          -1
        2           3
<P>
So here you should put (-1) in the expression and you should get (-9)
So you would have to multiply by 9
<P>
Sample functions are below,please try to find other ways of doing this as well,because the same expression can be written in at least 3 different ways
<P>
         x         y      f(x)
       -1          -9     (9x)
        0          -5     (x-5)
        1          -1     (-x)
        2           3     (x-1)
<P>
-xC