Match the functions to the ranges when the domain is (1,2) (x)=3x + 5 f(x) = x^2 - 2x -5 f(x) =(x+5)x^2 f(x) =4-x

Dommain is input
range is output from given input (domain)

1,2
just input 1 for x and evaluate
then input 2 for x and evaluate

f(x)=3x
f(1)=3(1)=3
f(2)=3(2)=6
range=(3,6)

f(x)=x^2-2x-5
f(1)=1^2-2(1)-5=1-2-5=-6
f(2)=2^2-2(2)-5=-5
range=(-6,-5)

f(x)=(x+5)x^2
f(1)=(1+5)(1^2)=(6)(1)=6
f(2)=(2+5)(2^2)=(7)(4)=28
range=(6,28)

f(x)=4-x
f(1)=4-1=3
f(2)=4-2=2
range=(3,2)

The mean is equal to the median according to e2020