Let f(x)= x^2-4x-c. Find a nonzero value of c such that f(c)=c.

The nonzero value of c will be:

Step-by-step explanation:

Given the function

as

so

switching the sides

subtract c from both sides

Using the zero factor principle

so, the solutions to the quadratic equations are:

Therefore, a nonzero value of c will be:

a 270° rotation about point p says on e d g e n u it y (had to space it out because it says it's a misspelling so i couldn't submit it