ATAR Notes: Forum
VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE General & Further Mathematics => Topic started by: vidang on April 19, 2010, 08:08:04 pm
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i'm not quiet sure how to comment on slope
for example:
Gold Medals = -2.50 + 1.31 x Olympiad
how would comment if the intercept is negative or you just ignore it?
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Its in the textbook Im preety sure...
I know its in the essential book, for sure atleast.
Dont have book on me though so I dont remember exact wordings..
But Its something similar to like "On average, for each rise in Olympiads, there is 1.33 (something - sorry dont remember at all) rise in gold medals, or something across those lines.
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you would probably have to include what happens initially to get full marks, so:
initially the number of gold medals is (x intercept), and increases by an average of 1.33 per olympiad.
actually a better answer would be:
up until the (x-intercept) olympiad, the number of gold medals is zero, after which the number of gold medal increases by 1.33 per olympiad on average.
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x intercept?
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draw the graph in your calc and you'll see what i'm talking about...
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Would it be something like, up until the 2nd olympiad (x-int), the gold medals received equal to 0, after which the number of gold medal increases by 1.33 per olympiad on average.
haha finish off my sac tomorrow, and got a negative y-int for House prices against average earnings.
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The gold medal tally increases by 1.31 each Olympiad.