Difference between revisions of "2023 AMC 8 Problems/Problem 9"
Themathguyd (talk | contribs) (→Problem: Replace picture with asy, making sure to use the actual cubic to get the same graph) |
Themathguyd (talk | contribs) (→Problem: increase pen size of curve) |
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return -0.03125 x^(3) + 0.75x^(2) - 5.125 x + 14.5; | return -0.03125 x^(3) + 0.75x^(2) - 5.125 x + 14.5; | ||
} | } | ||
− | draw(graph(f,0,15.225)); | + | draw(graph(f,0,15.225),currentpen+1); |
real dpt=2; | real dpt=2; | ||
real ts=0.75; | real ts=0.75; |
Revision as of 16:32, 25 January 2023
Contents
[hide]Problem
Malaika is skiing on a mountain. The graph below shows her elevation, in meters, above the base of the mountain as she skis along a trail. In total, how many seconds does she spend at an elevation between and meters?
Solution
The time intervals in which Malaika's elevation is between and meters are:
- from the nd to the th seconds
- from the th to the th seconds
- from the th to the th seconds
In total, Malaika spends seconds at such elevation.
~apex304, MRENTHUSIASM
Video Solution 1 by SpreadTheMathLove
https://www.youtube.com/watch?v=lfyg5ZMV0gg
Video Solution by Magic Square
https://youtu.be/-N46BeEKaCQ?t=4903
See Also
2023 AMC 8 (Problems • Answer Key • Resources) | ||
Preceded by Problem 8 |
Followed by Problem 10 | |
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
All AJHSME/AMC 8 Problems and Solutions |
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions.