Can you help me find the values of y and z?

For what value of jn is mn parallel to kl

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]

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list