Functions Flashcards
1
Q
Natural Numbers
A
Symbol: N eg: 1,2,3,4,5…
2
Q
Real Numbers
A
Symbol: R eg. -4.3, root 2, 20
3
Q
Rational Numbers
A
Symbol: Q eg. root 2, 1/3
4
Q
Integers
A
Symbol: Z eg. -3, -2, 0, 1
5
Q
Graph of e^x
A
y positive, crosses y axis at 1
6
Q
Graph of lnx, log x
A
x positive, crosses x axis at 1
7
Q
Graph of 1/x
A
on top right and bottom left quadrants
8
Q
Composite Function Domain and Co-Domains
A
Domain = domain of inside function, Co-Domain = co-domain of outside function
9
Q
RHS and LHS Limits
A
If equal, then the limit exists
10
Q
Vertical Asymptote
A
Make denominator of function = 0, solve
11
Q
Horizontal Asymptote
A
Divide all elements by the highest powered polynomial
