Algrebra and Functions Flashcards
(10 cards)
1
Q
Decimal surd
A
Can be split into fractions
2
Q
Discriminant
A
b^2 - 4ac
3
Q
Quadratic formula
A
(-b +/- sqrt(b^2-4ac) ) / 2a
4
Q
Set Notation
A
{ X : inequality }
n, u
5
Q
Interval notation
A
[] for >= and <=
() for < and >
6
Q
Functions
A
Range: Possible Y values
Domain: Possible X values
7
Q
Domain and range format
A
X £ R, inequality
Y £ R, Inequality
8
Q
Inverse
A
Only if 1-to1
Restrict domain
Reflection down y=x
9
Q
Translations
A
(x
y)
10
Q
Inverse function value subbed in
A
Set value equal to orginal function
