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.

-4

step-by-step explanation:

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3