anonymous
  • anonymous
Please Please Help. This is due monday and I have no idea how to do it. I need more than just answers, I need to see how to work it. Thanks, Tiff Carbon dioxide CO2 is a greenhouse gas in the atmosphere that may raise average temperatures on Earth. The burning fossil fuels could be responsible for the increased levels of carbon dioxide. If current trends continue, future concentrations of atmospheric carbon dioxide in parts per million (ppm) could reach levels shown in the accompanying table. The CO2 concentration in the year 2000 was greater than it had been in 160,000 years. Year 2000
Mathematics
  • Stacey Warren - Expert brainly.com
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
A lot of words, no question.
anonymous
  • anonymous
The rest of it didn't show up. Hold on
anonymous
  • anonymous
Year 2000 2050 2100 2150 2200 ppm 364 467 600 769 987 a) Let x be in years, where x=0 corresponds to 2000, x=1 to 2001 and so on. Find the values for C and a so that f(x)=Ca^x models the data. b) Graph f and the data in the same viewing rectangle. c) Use f(x) to estimate graphically the year when the Carbon dioxide Concentration will be double the preindustrial level of 280 ppm.

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anonymous
  • anonymous
is the question complete?
anonymous
  • anonymous
Its a through c. That is it.
anonymous
  • anonymous
Start off by making a graph, where x, put the years 2000 at x=0, 2001 at x=1 etc
anonymous
  • anonymous
Ok I can do that.
anonymous
  • anonymous
The y or f(x) is ppm
anonymous
  • anonymous
What type of graph do I make?
anonymous
  • anonymous
do you have a graphing calculator?
anonymous
  • anonymous
No but I have the graph done. I just did a line graph.
anonymous
  • anonymous
What next.
anonymous
  • anonymous
Does your graph look like a like a "J"?
anonymous
  • anonymous
Draw a rough graph as we speak, do you have your graph?
anonymous
  • anonymous
Yes
anonymous
  • anonymous
Make a dot at 364-2000
anonymous
  • anonymous
I have plotted everything in the table..
anonymous
  • anonymous
Is that right?
anonymous
  • anonymous
Then draw the line, you are one third complete. Why are you stressing?
anonymous
  • anonymous
Part a) and c) that is what I'm stressing about. LOL
anonymous
  • anonymous
I drew the line.
anonymous
  • anonymous
As I'm reading this, they want you to do it in a calculator, you must have had some practice inputting in calculator.
anonymous
  • anonymous
I have to show all my work for part a) and c) and I don't get part a) at all.
anonymous
  • anonymous
Did you have practise inputting in calculator?
anonymous
  • anonymous
Sure I have before. I already took my test and did great on it. So I don't know what my deal is.
anonymous
  • anonymous
So set up the tables in a calculator.
anonymous
  • anonymous
c) is just asking you to look at the x value of your calculator and tell what year the ppms would hit 560
anonymous
  • anonymous
I don't have a graph caculator.
anonymous
  • anonymous
\[f(x)=560^{x}\]You can look at your tables and guess what year 560 is hovering over. For a more accurate answer solve for x algebraically.
anonymous
  • anonymous
I got it finished. Thank you for your help. :)

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