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28 Cards in this Set
 Front
 Back
i^0

1


i^1

i


i^2

1


i^3

i


quadratic formula

finds the roots
x equals negative B plus or minus the square root of B sqaured minus 4(a)(c) all over 2(a) 

discriminant

describes the roots
the square root of b squared minus 4(a)(c) 

sum of roots

b
___ a 

product of roots

c
___ a 

if x>0 and perfect square:

1) roots are real, rational and unequal
2) 2 xintercepts 

if x<0, not a perfect square

1)roots are real, irrational, unequal
2)2 xintercepts 

if x=0

1)roots are real, rational and equal
2)1 xintercept, tangent to the xaxis 

if x<0

1)imaginary roots
2)no x intercepts x^2= above the x axis x^2= below the x axis 

what can't you have in the denominator of a fraction?

i and a radical


i^0

1


i^1

i


i^2

1


i^3

i


quadratic formula

finds the roots
x equals negative B plus or minus the square root of B sqaured minus 4(a)(c) all over 2(a) 

discriminant

describes the roots
the square root of b squared minus 4(a)(c) 

sum of roots

b
___ a 

product of roots

c
___ a 

if x>0 and perfect square:

1) roots are real, rational and unequal
2) 2 xintercepts 

if x<0, not a perfect square

1)roots are real, irrational, unequal
2)2 xintercepts 

if x=0

1)roots are real, rational and equal
2)1 xintercept, tangent to the xaxis 

if x<0

1)imaginary roots
2)no x intercepts x^2= above the x axis x^2= below the x axis 

what can't you have in the denominator of a fraction?

i and a radical


a+bi

x= the square root of a^2 + b^2


the square root of a negative =

i radical number or if its a perfect square, number then i
