Answer:
Step 1: Set x to -1 in the first equation
[tex]f(x) = -x^2 + x[/tex]
[tex]f(-1) = -(-1)^2 + (-1)[/tex]
[tex]f(-1) = -(1) - 1[/tex]
[tex]f(-1) = -1 - 1[/tex]
[tex]f(-1) = -2[/tex]
Step 2: Set x to -1 in the second equation
[tex]f(x) = -x[/tex]
[tex]f(-1) = -(-1)[/tex]
[tex]f(-1) = 1[/tex]