Question

y= f(x) = 3x. the values of f(1/2) and f(1/4).

Answer 1

$f(x)=3x\\\\subtitute\ x=\dfrac{1}{2}\\\\f(\frac{1}{2})=3\cdot\dfrac{1}{2}=\boxed{\frac{3}{2}=1.5}\\\\subtitute\ x=\dfrac{1}{4}\\\\f(\frac{1}{4})=3\cdot\dfrac{1}{4}=\boxed{\frac{3}{4}}$