Question

Use the following function rule to find f(–1).

f(x) =
–3 −
10
x

f(–1) =

Answer 1

To find \( f(-1) \) using the function rule \( f(x) = -3 - \frac{10}{x} \), we can substitute \( -1 \) for \( x \).

So,

\[
f(-1) = -3 - \frac{10}{-1}
\]

Calculating the fraction:

\[
f(-1) = -3 - (-10)
\]

This simplifies to:

\[
f(-1) = -3 + 10
\]

Therefore:

\[
f(-1) = 7
\]

So, the final answer is:

\[
f(-1) = 7
\]