Can someone please help me?
Give me a second
It's lesson 3.08
Here are the questions
Please help me with all of them
\[p(0)=7\] since zero cups cost $7 that is the delivery charge
That's what I have for the first question. Is it right?
yes
Good! Now can you help me with the next parts?
I don't get what I'm doing in part B
i wrote the answer to B above
Oh ok
I understand that part now
you did D when you found the function
Ok.
How should I make my graph?
i don't know, that is up to you
i can do one here in wolfram
Ok please do so!
as you expect it is a line with slope \(m=.037\) and \(y\) intercept \(7\) i made the domain from 0 to 3000 because that is what you had in the table
Ok. Thank you!
Now. The one that looks the hardest. Part E. Can you help with that?
E is no harder than what you did in A, B, C and D in fact, it is easier because you do not have to find the rate of \(.037\) like you did in the first one, you are told it is \(.039\) and also you do not have to find the y intercept is \(7\) you are told it is \(3.5\)
ok
so make up your new linear function, but this one has y intercept 3.5 and slope .039
as for the picture, here is another from wolfram http://www.wolframalpha.com/input/?i=y%3D7%2B.037x%2C+y%3D3.5%2B.039x+domain+0..3000
and here is a bigger one
Ok thanks
as for finding where the lines intersect to finish the question, solve \[.037x+7=.039x+3.5\]
or better still solve \[37x+700=39x+350\]which is the same thing only your units are pennies, not dollars gets rid of the decimals
Ok..
I'm confused. Use the second one?
@misty1212 what exactly is D?
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