Question

find the range of the function

f(x)=x^2+8

Answer 1

the range is usually located in the y axis... since the function isn't a fraction, there is no restriction.

Answer 2

but we need to find the minimum for the range
The range is different because x^2 will make any value of x either 0 or a positive number. Therefore, we need to establish the minimum
let x = 0
then solve for y
f(x) can also mean y
y = x^2+8
if x = 0
then y=(0)^2+8