Answer :
Basically you substitute 16 in for x.
f(16) = 3/4(16) - 5
f(16) = 12 - 5
f(16) = 7
f(16) = 3/4(16) - 5
f(16) = 12 - 5
f(16) = 7
[tex]f(x) = \frac{3}{4}x - 5 \\f(16) = \frac{3}{4}(16) - 5 \\f(16) = 12 - 5 \\f(16) = 7[/tex]