PLEASE HELP
f(x)=17x/5lxl (absolute value of x)
f(r^4)=?

Question

anonymous · Answer

exactly what are we finding?

anonymous · Answer

f(r^4)=17(r^4)/5lr^4l (absolute value of r^4, i dont know how to type that

anonymous · Answer

Im not sure weather or not i got the right answer or not but maybe your wording is wrong cause i cant seem to find or get a answer

anonymous · Answer

hmm if i attach a word doc would you be able to open it

anonymous · Answer

attachment

aum · Answer

$$
f(x) = \frac{17x}{5|x|} \
f(r^4) =  \frac{17r^4}{5|r^4|} \
\text{r^4 is always positive or zero.  It is never negative for real values of r. }\
\text{Therefore, the absolute value can be removed. }\
f(r^4) = \frac{17r^4}{5r^4} = \frac{17}{5}\
$$as long as $r \ne 0$.

anonymous · Answer

okay i see. thank you!