whatis the pricewise function for f(x) = |2x + 6|?

Question

anonymous · Answer

$$|x| = \left\{ \begin{matrix}-x, \space x \le 0 \ x, \space x>0\end{matrix}\right.$$So $|2x +6| = \left\{ \begin{matrix}-(2x+6), \space 2x+6 \le 0 \ 2x+6, \space 2x+6>0\end{matrix}\right.$ 

You are not done. You need to simplify something. 



Is this clear?

anonymous · Answer

yes thankyou

anonymous · Answer

Are you sure you understand completely? I'd glad to clarify more.

anonymous · Answer

i got it all i have to do is solve the 2x+6 part .

anonymous · Answer

but o need help with another question :What are the x-intercepts of f(x)= |2x| - 6?

anonymous · Answer

x-intercepts is when f(x) = 0 so |2x| - 6 = 0. 

|2x| = 6

Do you know how to get rid of absolute value?