find f (8) when f (x)=-(26)/(x+7)

Answer 1

To find f(8), we plug in 8 for x in the function f(x) = -(26)/(x + 7):

f(8) = -(26)/(8 + 7)
f(8) = -(26)/(15)
f(8) = -26/15

Therefore, f(8) = -26/15.