Question

use the given function f to find f(0) and solve f(x)=0

Answer 1

\[\frac{ 3x^2-12x }{ 4-x^2}\]

Answer 2

Well, f(0) is just what you get when you plug in 0 for x in the function, and then simplify.

Answer 3

right got that part was having trouble figuring out the 2nd part

Answer 4

Solving f(x)=0 means to set the expression =0 and then solve for x. This this is a rational function, f(x)=0 really means that the numerator is =0, since that's the only way a rational expression can be =0

Answer 5

ah ok thats making sense!!

Answer 6

But check for extraneous solutions.... always with rational functions, be on the lookout for that!

Answer 7

This function is not in lowest terms, and it looks to me like you will have extraneous solutions. :)