Question

Let f(x) = 12 over 4x+3. Find f(-1)

Answer 1

`f(x)=(12)/(4x+3)`

Substitute x = -1 to the equation of the function:

`f(-1)=(12)/(4(-1)+3)=(12)/(-4+3)=(12)/(-1)=-12`

Answer: f(-1) = -12

Answer 2

sub -1 into the x's

`f( - 1) = (12)/(4( - 1) + 3)`
simplify.

`= (12)/( - 4 + 3)`


`= ( - 12)/( - 1)`
awnser:


`f( - 1) = - 12`