Question

Solve with explanation please

Answer 1

Answer: $\boxed{\dfrac{2}{5}}$

f(3)

Put the value of x = 3 to the equation of the function

$f(x)=\dfrac{4}{5}x-2\\\\f(3)=\dfrac{4}{5}\cdot3-2=\dfrac{4\cdot3}{5}-2=\dfrac{12}{5}-\dfrac{10}{5}=\dfrac{12-10}{5}=\boxed{\dfrac{2}{5}}$