PROBLEM: Why should the graphs of $f(x,y)=x^2+y^2$ and $g(x,y)=-x^2-y^2+xy^3$ be called 'tangent' at $(0,0)$?
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Tuesday, 30 September 2008
Friday, 26 September 2008
travel Graphs, speed, distance, time. Shown are graphs of the position function of two runners, A and B, who run a 100-m race and finish in a tie. a) Describe and compare how the runners run the race. b) At what time is the distance between the runners the greatest? c) At what time do they have the same velocity?
QUESTION
Shown are graphs of the position function of two runners, A and B, who run a 100-m race and finish in a tie.
a) Describe and compare how the runners run the race.
b) At what time is the distance between the runners the greatest?
c) At what time do they have the same velocity?
Shown are graphs of the position function of two runners, A and B, who run a 100-m race and finish in a tie.
a) Describe and compare how the runners run the race.
b) At what time is the distance between the runners the greatest?
c) At what time do they have the same velocity?
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