Evaluate the expression for f = –9. Simplify your answer.

Question

f/ f + 10
=

Answer 1

To evaluate the expression \( \frac{f}{f + 10} \) for \( f = -9 \), we start by substituting \(-9\) for \(f\):

\[ \frac{f}{f + 10} = \frac{-9}{-9 + 10} \]

Next, we simplify the denominator:

\[ -9 + 10 = 1 \]

Now we can substitute this result back into the expression:

\[ \frac{-9}{1} = -9 \]

Therefore, the simplified answer is:

\[ \boxed{-9} \]