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anonymous
 one year ago
Trend lines! PLEASE help!!
anonymous
 one year ago
Trend lines! PLEASE help!!

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Reposting under the Algebra section. I need help with 7 and 8

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do you still need help

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes. Sorry I had to log off for a bit, but yes I am in desperate need if you are still here

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1are you allowed to use technology? like a calculator or excel or open office?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I have a graphing calculator, TI84 I don't think I'm allowed to use excel, open office, etc

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1ok let's use a TI84 then

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1hit the STAT key (under the DEL key) then hit enter to get into the edit list menu

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I have the points entered for #7 already. The years are in L1 and the prices in L2

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1ok so your data is already inputted, good

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1now go back to the home screen (2nd > quit) then hit the STAT key again, go to the CALC menu (scroll once to the right) and then scroll down to `4:LinReg(ax+b)`

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0All right, I did that and then entered to "calculate", and I have the results from that

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1what do you see?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got y=ax+b a=1616.785714 b=3116482.143

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The reason I am confused on this problem is because those values don't seem to match any of the answers

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1hmm strange how none of the answer choices match

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yeah, that's what I'm confused on, lol!!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I know my teacher made other mistakes on this test, so maybe this is one as well.

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1ok I've figured it out. It's strange how your teacher went about this way instead of doing a true regression, she simply picked 2 points. In this case, the first and last points (0,20200) and (60,119000) the line through those two points is y = 1646.67x + 20200 then you plug in x = 80, since 20201940 = 80, to find the estimated median home price in the year 2020

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1I noticed that each answer choice had a yintercept of 20200 so that meant that she made x = 0 when the year was 1940

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0OH! So, just to make sure I understand, if I use the years as "0,1,2,3,4,5,6" instead of "1940,1950,etc" I will calculate the right answer?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1more like 0,10,20,30,40,50,60

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0OH! Okay!! Thank you so much!! I think I will be able to understand 8 as well. Thank you thank you!!

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1you're welcome
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