Section 1.4 is about functions operations: addition, subtraction, multiplication, division and (perhaps most importantly) composition. The big issue is the change of the domain for the new function. Try the Exploration on page 112 (if we don't finish it in class - it is good for you to think about what composed functions can turn into). There is also the issue of non-function relations and the functions implied by there equations. Ask again if the explanation in class and homework doesn't clarify the issue for you.
9/15 for E-Block, 9/17 for G-Block: HW pp.116-118/5, 7, 12-42 by 3's, 51-55
Note: A test is coming relatively soon (next week probably) so make sure you are keeping up with homework and concepts!
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