(X):0,1,2,4,5 and (Y):1,4,7,13,16 what is the equation and is it linear or exponential? ASAP

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

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]

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.