semester exam Flashcards
1
Q
Sum/difference of cubes
A
- a3 + b3 = (a + b)(a2 – ab + b2)
- a3 – b3 = (a – b)(a2 + ab + b2)
2
Q
f(x+h)
A
- Plug in (x+h) for all x’s in f(x) and then subtract the whole f(x)
3
Q
average rate of change
A
f(b)-f(a) / b-a
4
Q
might have to
A
factor out the y
5
Q
expand
A
(degree/increasing degree starting with 0) (a)^decreasing degree (b)^ increasing degree starting with 0
- always one more than degree
6
Q
Find the nth term
A
expand backwards
7
Q
arc length
A
s=r x angle
8
Q
area
A
1/2 r^2 degree
9
Q
synthetic division
A
opposite sign
