Pre Calc Unit 2 Quiz 1
Rational Zero Test=
-All possible factors of the constant divided by all the possible factors of the leading coefficient
Remainder Therorem
The remainder in division is the value at y for that particular x ex. divisor is -1 and remainder is 9 then f(-1)=9
standard form of complex numbers
a+/- bi
end behavior of an odd negative function
as x approaches - infinity, f(x) approaches + infinity as x approaches + infinity, f(x) approaches - infinity
end behavior of an even positive function
as x approaches - infinity, f(x) approaches + infinity as x approaches + infinity, f(x) approaches + infinity
end behavior of an odd positive function
as x approaches - infinity, f(x) approaches - infinity as x approaches + infinity, f(x) approaches + infinity
end behavior of an even negative function
as x approaches - infinity, f(x) approaches - infinity as x approaches infinity, f(x) approaches - infinity
the number of zeros is
equal to the degree of the function
standard form
f(x)=a(x-h)^2+k
general form
f(x)=ax^2+bx+c
General Form is useful for what?
finding intercepts
standard form is useful for what?
finding the vertex (h,k)
formula or x-intercept, x coordinate of vertex, axis of sym
h=-b/2a
Factor Theorem
if the remainder is a zero, then what you are dividing by is a factor
the number of turns is
one less then the degree of the function
i=
sqrt(-1)
if b = 0 then
the number is a real number
if a =0 and b cannot = 0 then
the number is called an imaginary number