Equations
Require creating common denominators
Rational Equations
General Form
a+bi
Breaks up the graph into intervals
zeros/roots/x-intercepts
Denoted by this letter
x
Can't repeat
x - values
Requires Substitution
Higher Power
"Opposite"
Conjugate
must find with rational inequalities
Domain of a radical
greater than 0 or equal
can repeat
y - values
Separates into 2 equations
Absolute value
definition of i
square root of -1
inclusive symbol
bracket []
Domain of a rational expression
everywhere but where 0
Evaluate: f(radical 2)
f(x) = x2+3
5
x4-8x2+8 = 0
W = ?
W = x2
i2
-1
must be this number on one side
0 - zero
Domain of a line
True or False:
age is a function of height.
False
Solutions rescrited because of domain
Radical equations
One solution is 4-5i. What is another?
4+5i
The sign of the inequality when solution is between 2 numbers
Less than <
Domain?
2/(x-1)^.5
x>1
A function described by many equations
Piecewise