What is the value of f(-1) when f(x)=2x+2
Plug (-1) into the x then you'll get 2(-1)+2 then you'll get 0 because -1 times 2 is -2 and -2 plus 2 equals 0
First plug in F(-1) into F(x)+2x+2F(-1)=2(-1)+2Solve F(-1)= -1 + 2F(-1)= 1So when the function is -1, x equals 1