<span>Given that B=(1,2,3,4) how many subsets have exactly two elements?
4C2 =
4! 4! 4 x 3
------------ = -------------- = --------------- = 6
2! (4-2)! 2! 2! 2 x 1
answer is 6</span>
Answer:
9
Step-by-step explanation:
find it your self . you have the potential atleast try it out .
If you don’t mind...who were you? as in your name?
Answer:
Option c. Reflection across the x-axis and vertical stretch by a factor of 7
Step-by-step explanation:
If the graph of the function 
represents the transformations made to the graph of 
then, by definition:
If 
then the graph is compressed vertically by a factor a.
If 
then the graph is stretched vertically by a factor a.
If 
then the graph is reflected on the x axis.
In this problem we have the function 
and our paretn function is 
therefore it is true that
.
Therefore the graph of is stretched vertically by a factor of 7 and is reflected on the x-axis
Finally the answer is Option c
