f(x) = x² + 1
domain :
range :
fuction or not fuction

(x+3)² + (y – 2)² = 4
domain :
range :
fuction or not fuction

x+3
f(x) = ———
x – 2
domain :
range :
fuction or not fuction:

____
f(x) = √ x – 8
domain :
range :
fuction or not fuction


​