Write a formula for the piecewise function graphed in the figure. You should assume that if the graph has no endpoint marked (and continues to the edge of the picture) then it continues in this fashion without end. (a) The formula for the left piece of $f(x)$ is $f(x) =$  help (formulas) for all $x$ that satisfy the inequality  help (inequalities) (b) The formula for the right piece of $f(x)$ is $f(x) =$  help (formulas) for all $x$ that satisfy the inequality  help (inequalities)

You can earn partial credit on this problem.