Three reasons why the other method is not better is because to use drawing program would mean you would need some sort of technology and electricity to use it and some places, like third world countries, do not have access to that, so most probably you would have to resort to paper. Also, drawing programs are based off the skills needed to create geometric figures with a straightedge and compass. And lastly, what if we had no more technology anymore? Then how would we use a drawing program? Drawing programs are only reliable when electricity is located.
SO THE ANSWER IS A hope it help :)
We have a domain of a function, that is, which x-es can we throw in. But we are asking which y-s will we get given that we can only throw x-es in 
.
Let's try 
even though we are forbidden to put 4 inside 
we are still able to do so.
So 
what we just got is the upper limit of the range. The lower limit is 
.
So the range is just 
.
Hope this helps :)
Answer:
The greatest possible value of xy is 165.
Step-by-step explanation:
Answer: y = − 
Step-by-step explanation:
