To find f(2) we will evaluate the given function at x=2.
Recall that to evaluate a function at a given value, we substitute the variable by the given value, in the case we substitute x by 2:
[tex]f(2)=2(2)^2-1.[/tex]
Simplifying the above result we get:
[tex]f(2)=2(4)-1=8-1=7.[/tex]
Answer:
[tex]f(2)=7.[/tex]
