Following questions are based on the given information for the following functions `f(x)`
`f(x)=2bx+f(-x), if x lt0`
`f(x)=a if x =0`
`f(x)=b+c-2cx+f(x-1), if x gt0`
If `a=10, b=-7, c=6`, then `f(-10)` equals:

Options

A. -660
B. -520
C. -250
D. none of these

Answer

B