Remember
whenever you square-root something
Add = 0 when it is an equation and throughout the problem
When directions say function y = x
PEMDAS
When doing evaluating, simplifying, calculating
SADMEP
When undoing solving
Chap. 2 Vocab.
Domain- The se
Inverse Variation
y = k/x
Vertical Asymptotes
When the denominator = 0
F(x) = 6/(x-5)
o VA: 5
y = (x + 2)/(x - x 12)
o (x + 2)/(x + 3)(x 4)
o VA: -3, 4
Horizontal Asymptotes
If the power is smaller on top, y = 0
If the power is larger on top, y = infin
Graphing logarithms?
Condensing vs. expanding?
Base and range?
Tack on when solving the problem, but not in the answer!
e- Natural number- 2.718
Writing an Exponential Function y = abx for the Given Points
(-3, 24), (-12, 12)
Compound Interest Formula (n
When to put absolute values symbols?
Just when whatever comes out of the square root is odd?
When there are two answers (387)?
7.2
Rationalizing the Denominator for cube roots (pg. 370)
7.3
Rationalizing Binomial Radical Denominators (pg. 376)
7.4
Ration
6.5
Finding the roots (when the grouping method doesnt work)
2x3 x2 + 2x 1 = 0
P: (+/-)1
Q: (+/-)1, (+/-)2
P/Q = (+/-)1, (+/-)
Find which root can be plugged in so that the polynomial = 0
!
(x )( ? )
Use synthetic division:
2x3 x2 + 2x 1 = 0
Find the zer
Quadratic Formula
Standard Form of a quadratic formula
y = ax2 + bx + c
Vertex Form of a quadratic formula
y = a(x h)2 + k
vertex- (h, k)
Maximum/minimum value- k
Axis of symmetry- x = h
Ask
What happens when y = x2
What happens when y = 2x2
Example
A relation that is a function does not have x coordinates that correspond to more
than one y coordinate
Slope Intercepto y= mx + b
Point Slop Formula
o Y1-Y2 = m (x1 x2)
Standard Formo Ax + By = C
m = 0/n = 0
m = n/0 = undefined
Two lines are parallel i