Unknown Story
Siužetinės Linijos Tekstas
- Light up the sky Abby Gunderson 4B
- Aubrey is watching the fireworks on forth of July. She notices that when the firework shoots up it leaves a trail in the sky and then when it falls down it does the same. Aubrey says to her friend that it looks like a parabola. She knows that each firework shoots up 100 meters and estimates it falls 30 meters from the take off site.
- (0, 0)x,y
- 15,000
- 100 m
- 30
- Aubrey decides to figure out the parabola by using the formula y=a(x-p)^2 +q.
- y= a(x-p) ^2 +q y= a (x-15) ^2 +1000= a ( 0- 15) ^2 + 100 -100 = a(225) a= 100/ 225
- Aubrey used her calculator to figure out that a= 100/225 or simplified it would be 4/9. Now she can see that parabolas are used in real life and can enjoy the rest of the fireworks
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- The end
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