Thursday, March 28, 2013

How do we use conjuctions and disjunctions?

Conjuctions-Hooking up words and phrases and clauses with AND. A conjuction has two statements connected by and. A conjuction is true when both parts are true otherwise it is false.
    
              Ex. Mary is on the softball team and Rob is on the football                        team.
                
Disjuctions-Hooking up words and phrases and clauses with OR. Two statements connected by or.A disjunction is false when both are false otherwise it is true.
     
             Ex. Mary is on the softball team or Rob is on the football team.



Thursday, March 7, 2013

How Do We Do Compositions of Transformation?

Composition of Transformations-When two or more transformations are combined to form a new transformation , the result is called a composition of transformation 

Example:  (2,6)










Always do second transformation first

First reflect (2,6) over the x-axis.
    x-axis (x,y)---(x,-y)
              (2,6)---(2,-6)

Second dilation by multiplying by 2 in both x and y
     2 multiplied by 2= 4  x=4
    -6 multiplied by 2=-12 y=-12
                    (4,-12)

Final answer=(4,-12)