Question

How do you write f(x)=|3x+1| as a piecewise defined function?

Answer 1

f ( x ) = { 4 x + 1 xxx x ≥ 0

{2 x + 1 xxx x < 0

Explanation:

If x ≥ 0 then | x | = x

and if x < 0 then | x | = − x

hope it helps!