18 Jan lesson's summary

worksheet A01C Q6

1       

                     1   2   1

                 1   3     3   1

              1   4     6    4    1

          1    5   10    10   5     1

Binomial

(a+b)^1=a+b

(a+b)^2=a^2+2ab+b^2

(a+b)^3=a^3+3a^2b+3a^1b^2+b^3

(a+b)^4=a^4+4a^3b^1+6a^2b^2+4a^1b^3+b^4

(a+b)^5=a^5+5a^4b^1+10a^3b^2+10a^2b^3+5a^1b^4+b^5

Linear

y=mx+c

m-gradient(slope)

c-y-intercept

Quadratic

Y=ax^2+bx+c

Roots:

Real & equal:

Real & distinct:

Imaginary:

Cubic:

3 kinds of graph 

h(x) = x³ - 4

f(x) = x³ + 4x² + 3x + 1

g(x) = x³ + x

Sorry for posting it late.

 Done by Crystal