lim x → 2 3 2 - ax + x + 2 × 2 - 3 x 2

Find the domain of the function: f(x) O All Real Numbers O {x\ x=4} Ο Ο Ο O {x|x = 4, x= 3} O (X1X=3) 3} x2 - 5x+6 x² - 7x+12

Write out all functions f:{1,2}→{a,b,c} (in two-line notation).