What is the domain of the function f (x) = startfraction x + 1 over x squared minus 6 x + 8 endfraction? all real numbers all real numbers except –1 all real numbers except –4 and –2 all real numbers except 2 and 4

  all real numbers except 2 and 4

Step-by-step explanation:

The exceptions in the domain are the values that make the denominator zero. For a denominator of x² -6x +8 = (x -4)(x -2), the values that make it zero are x=4 and x=2.

The domain is all real numbers except 2 and 4.

12*c

step-by-step explanation:

overpriced

step-by-step explanation: