Question

What is the range of the function f(x)=1/2x+3 when the domain is {-2, 0, 2}

Answer 1

`f(x)= (1)/(2) \cdot x+3 \\\\f(0)= (1)/(2) \cdot (-2)+3=-1+3=2 \\\\f(0)= (1)/(2) \cdot 0+3=0+3=3 \\\\f(2)= (1)/(2) \cdot2 +3=1+3=4\\\\The\ range=\{2;\ 3;\ 4\}`