Precalculus work:
1.1 REAL NUMBERS
1) State the property of real numbers being used. (x + a)(x + b) =
(x + a)x + (x + a)b
Review for this question:
Type of numbers:
The distributive property applies whenever
we multiply a number by a sum. This property
is
FALL 2015
COURSE INFORMATION (ADDENDUM)
MATH 115 PRE-CALCULUS COLLEGE MATHEMATICS
INSTRUCTOR: Steven L. Safran
E-MAIL:
[email protected]
OFFICE HOURS:
Monday (1:40 pm 3:00 pm) Livingston Campus, Lucy Stone
Hall, B-Wing, Room 102B
Wednesday, (9:40
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!
I.
Domains of a Function (the x-values) !
IB1:
IB2:
IB3:
IB4:
A. Most functions, such as
equations without a denominator, have domains as (-, )!
B. Functions with restricted domains!
1. 1/x (gure IB1)!
2. 1/x2 (gure IB2)!
3. x (gure IB3)!
4. 1/x (gure I
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Graphing a Polynomial Function !
1.Use the Leading Coefcient Test to determine the graphs end
behavior!
2.Find x intercepts by setting f(x) = 0 and solving the resulting
polynomial equation. If there is an x intercept at r as a result of
(x - r)k in the c
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