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Math 11

General Term tn=t1+d(n-1)

Arithmetics sum Sn=n(t1+tn)/2

General Term tn=1×r^2-1

Geometric sum  Sn=t1(1-r^)/1-r, r≠0

Infinite Geometric sum S∞=t1/1-r

 

I learned these formula.

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Week16

This week I learned Genaral form and y-intercept form. The  point -slope form of equitation of a line is y-y1 = m(x-x1) where m is the slope of the line, and (x1,y1) represents a point on the line .

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Week 14

 

 

 

 

 

This week I leaned the form y=mx+b can be used to determain the equation.

And the gragh of an equation in the form y=mx+b is a straight line with slope m and y-intercept b.

 

 

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Week 13 blog post

This week I learned Function Notation.

Function Notation is used to replace the mapping notation f: x→2x+3. Under a function f, the image of an element x in the domain is denoted by f(x), which is read “f of x”.

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This week I learned Function Notation.

Function Notation is used to replace the mapping notation f: x→2x+3. Under a function f, the image of an element x in the domain is denoted by f(x), which is read “f of x”.