Question

use the following functi
$f(x) = 9 - \frac{x}{7}$
$f(-7) = \square$

Explanation:

Step1: Substitute x=-7 into f(x)

$f(-7) = 9 - \frac{-7}{7}$

Step2: Simplify the fraction

$\frac{-7}{7} = -1$, so $f(-7) = 9 - (-1)$

Step3: Calculate the result

$9 - (-1) = 9 + 1 = 10$

Answer:

10