semester 1 review formulas Flashcards
1
Q
(x1+x2 /2 , y1+y2 /2)
A
midpoint formula
2
Q
d= square root of (x2-x1)^2 + (y2-y1)^2
A
distance formula
3
Q
m= y2-y1 / x2-x1
A
slope formula
4
Q
(h-x)^2 + (y-k)^2 = r^2
A
circle formula
5
Q
y=mx +b
A
slope intercept formula
6
Q
y-y1=m(x-x1)
A
slope finding formula when given a point + slope
7
Q
A= P(1+r/n) ^nt
A
compounded
8
Q
A= Pe^rt
A
continuous compounding
9
Q
an=a1+(n-1)d
A
arithmetic sequence
10
Q
an=a1r ^n-1
A
geometric sequence
11
Q
sn= n/2(a1+an)
A
arithmetic series
12
Q
sn =a1(1-r^n / 1-r)
A
geometric series
