Question

use the following function rule
f(x) = 7.89 - \frac{9.45}{x}
write your answer as a decimal
f(1.05) = \square

Explanation:

Step1: Substitute x=1.05 into f(x)

$f(1.05) = 7.89 - \frac{9.45}{1.05}$

Step2: Calculate the fraction

$\frac{9.45}{1.05} = 9$

Step3: Compute the result

$7.89 - 9 = -1.11$

Answer:

-1.11