The +k part of the function takes the original function and translates it straight up k units. It's as simple as that. If your function is the line f(x) = 3x, then the function f(x) = 3x + 4 moves that first function up 4 units.
144 classes. each class is 10 minutes. 6X24= 144
Answer: B
Because it does not pass through (0,0)
4-(

)+111
=4-(4)+111
=111 since 4 and -4 cancel each other out