P1 assorted help Flashcards
1
Q
D > 0
A
two distinct real roots
2
Q
= 0
A
one repeated real root
3
Q
D < 0
A
no real roots
4
Q
what the fuck is f’(x)
A
derivative of a function f(x) – represents its rate of change
5
Q
vertex of graph
A
the highest/lowest point
6
Q
logarithims basic
A
log 10 a = x
10x = a
7
Q
logarithms base change
A
um
8
Q
how to find inverse of a function
A
make x the subject
Then switch y and x
9
Q
how to translate a function/graph??? is this p1
A
10
Q
360 degrees =
A
2 pi radians
11
Q
arc length of circle =
A
radius x angle (in radians)
12
Q
radians to degrees
A
radians x 180/pi
13
Q
Bionomial of (a+b)^n
A
= a^n + (nC1)a^n-1b^1 + (nC2)a^n-2 b^2 + …
14
Q
f o f is WHAT
A
function of a function
Sub in f(x) into x in g(x)
