chapter 2 Flashcards

(50 cards)

1
Q

cts steps

A

each side is (x-(b/2)) then find remainder, set factor with remainder equal to zero and solve

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2
Q

even degree means there myst be

A

turning points

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3
Q

degree can be

A

same degree as minimum or mote than bec ause of imag zeros

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4
Q

number of tp

A

one less than degree

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5
Q

vertex form

A

f(x)=a(x-h)^2+k

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6
Q

a>0

A

point up and vice versa

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7
Q

aos in vertec

A

x=h, x is coordinate of vertex

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8
Q

from standard to factor form

A

just factpr

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9
Q

finding x cord of vertex

A

add zeros together and divide by two using number line

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10
Q

finding y cord of vertex

A

input x cords to equation and solce

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11
Q

finding aos number line

A

use middle value then count from middle with divided values

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12
Q

given a vertex use

A

vertex form and solce for a

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13
Q

goal of cts

A

from standard to vertex

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14
Q

a>1 cts

A

use a amount of diagrams and split x evenly among, the use 1/2 of those for length and other 1/2 of those for width then c units to cts

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15
Q

x cord of vertex in quadratuc

A

-b/2a

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16
Q

multiplicity

A

the number of times a factor occurs

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17
Q

k odd vs even

A

cross vs bounce

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18
Q

to detetmine the a value on a graph

A

look at y int and input zero for x and solve to make equation true using a

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19
Q

odd mult can be

A

flat

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20
Q

turning p

A

less than or equal to degree minus 1

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21
Q

even degree must be

A

parabola with odd amount of turning points

22
Q

dividing polynomial

A

dividend is p(x) divisor is d(x) quotient is q(x) when p(x)/d(x)=q(x)+remainder/d(x)

23
Q

fundamental theorum of algebra

A

a polynomial has as many roots as its highest degree

24
Q

complex number

A

a+bi where a and b are real numbers and i is imaginary

25
conjugate pair
if a +bi is a root, a-bi is also a root
26
how to find multiplicity
think of domain and range for if it is allowed to cross
27
to factor completely
look for real zeros in a table or graph, divide out known factors, continue factoring is possiblewhen
28
when given shif
set equal to zero to solve and find i
29
degree f
y=0
30
finding leveling of
look for ha as x nears infinity
31
writing recip equations
total equation/variable ALONE
32
steps to graphing rational functions
always start by factoring, then numerator x valie is x int, denom x value is vertical asymptoe, and canceled out x value is hole at x=#
33
finding y cord of hole
plug x value into reduced version
34
finding va
denominator factors=0 and solve
35
finding order pair of holes
canceled factors=0 and solve then inpu into simplified equation
36
to find nearing inf or negative inf
plug in values left and right of va
37
to find va check
holes
38
when choosing even odd degree and pos neg coefficients
check to make sure it will be highest degree
39
make sure when graphing
goes thru all x and y int
40
recipricol asymptoes
becomes infinitely close so never straight line, passes horizontal line test
41
interpreting f(g(x))
do parenthesis first which means the order changes
42
f(x)=0
not always y int
43
degree=
number of turning points plus one, think of x^2
44
when ply is in denom
multiply by opposite b because baically fancy one but cancels
45
whe nume exponent is higher
no ha because it will always grow
46
when nume exponent is smaller
youre diving by larger number so you get infinitely close to zero
47
when nume equals denom exponent
they cancel so it bceoms RATIO BOZOOOO
48
if (x-c) is a factor of f(x)
f(-c)=0
49
polynomial p(x) divided by binomial (x-a_
remainder is p(a)
50
if there is plus a constant in"factored" form
its not actually factors