What is the slope of the line on the graph?

Which is the graph of the piecewise function f(x)? f(x)=[tex]f(x) = \left \{ {{-x+1, x\leq 0 } \atop {x+1, x\ \textgreater \ 0}} \right.[/tex]

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

W-16=-12 solve each one step equation plz