Relationship between solution and corresponding graph

  • #1

Homework Statement


upload_2016-5-23_21-42-46.png


Homework Equations


none

The Attempt at a Solution



Here is my answer for part A of this question:
upload_2016-5-23_21-48-58.png


Part B:
This is where I am having trouble.

I took a guess at this, but it is probably completely wrong:

The corresponding graph shows the profit when different amounts are spent. The x-intercepts show the amount spent when the profit is $0.

I get this is most likely wrong, so can someone please explain to me the relationship between the graph and my solution? or at least lead me in the right direction to forming an answer.

Thanks.
 

Answers and Replies

  • #2
Ray Vickson
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Homework Statement


View attachment 101170

Homework Equations


none

The Attempt at a Solution



Here is my answer for part A of this question:
View attachment 101171

Part B:
This is where I am having trouble.

I took a guess at this, but it is probably completely wrong:

The corresponding graph shows the profit when different amounts are spent. The x-intercepts show the amount spent when the profit is $0.

I get this is most likely wrong, so can someone please explain to me the relationship between the graph and my solution? or at least lead me in the right direction to forming an answer.

Thanks.
Why would you think it is wrong? It looks 100% correct to me.
 
  • #3
Why would you think it is wrong? It looks 100% correct to me.
Okay, I just took a guess for part b, and wrote the first thing I saw when I looked at the graph, I didn't think it was correct :/

Anyway, thanks for verifying my answer :biggrin:
 

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