exam 2 Flashcards

1
Q

a^m/n =

A

(^n√a)^m

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2
Q

a^b+c =

A

a^b*a^c

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3
Q

(a^b)^c

A

a^b*c

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4
Q

e is about

A

2.71828

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5
Q

standard form

A

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

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6
Q

h=

A

-b/2a

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7
Q

k=

A

plug h in function

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8
Q

if a>0, there is a

A

minimum value of k at x=h

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9
Q

if a<0, there is a

A

maximum value of k at x=h

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10
Q

graphing polynomial function steps

A

1) intercepts
2) sign check
3) end behavior
4) graph and label

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11
Q

when there is a multiplicity of 1, it

A

crosses the x axis

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12
Q

a^2+b^2=

A

(a+bi) (a-bi)

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13
Q

i^2 is

A

-1

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14
Q

use __ to determine real zeros of polynomials

A

long division

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15
Q

if c is a zero of p(x),

A

then x-c is a factor of p(x)

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16
Q

if a+bi is a zero of p(x),

A

a-bi is also a zero of p(x)

17
Q

coefficient

A

the number ex: 4

18
Q

term

A

the whole thing ex: 4x^2

19
Q

4 domain constraints of logarithmic functions

A
  1. 1/x ;x≠0
  2. √x ;x≥0 *n is even
  3. 1/√x ;x>0 *n is even *root is alone
  4. logaX; x>0
20
Q

graphing rational functions steps

A
  1. factor
  2. intercepts
    - x int on numerator
    - plug in 0 for y int
  3. VA (x=)
    - solve denominator
    * sign chart
  4. HA (y=)
  5. graph and label
21
Q

transformations

A
  1. base
  2. horizontal shifts
  3. reflections
  4. vertical shifts
22
Q

logarithmic properties

A
loga1= 0
logaA= 1
logaA^x=x
a^logaX= x
logaA^c= ClogaA
loga(AB) = logA+logB
loga(A/B)= logA-logB