Can someone just answer this asap for graph the equation. y = -3(x - 1)^2 + 1

Which expression is equivalent to 2^4y^3

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]

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8