Download - Quadratics in Context
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Quadratics in Contexta. The Pendulumb. Fireworksc. Parabolas in the Real Worldd. Changing Perimeter and Area
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The PendulumWatch the first minute and a half
of this video:◦http://www.youtube.com/watch?v=rd
SgqHuI-mwDid the pendulum learn about
quadratics in high school too?
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FireworksWatch some of this video:
◦Fireworks are timed with the music.◦http://www.youtube.com/watch?v=d
yaNPsHWDes&feature=relatedHow do fireworks know anything
about quadratics?
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Fireworks
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Parabolas in the Real WorldLocate the parabola in each
pictureThen note the differences in size
and shape of each.
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1 – Water Splash 1 - Fountain
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3 – Satellite 4 – Satellite
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5 - Cone 6 – Basketball Bounce
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7 - Branch 8 – Beach
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9 – Tyne Bridge 10 – Bridges
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11 – Bridge 12 – San Francisco
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Changing Perimeter and Area
1 ft
1 ft
1x ft
1x ft
What happens to the area and perimeter of the square when you multiply each dimension by a scale factor of x?
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Changing Perimeter and Area1 ft
1 ft1x ft
1x ft
What happens to the area and perimeter of the square when you multiply each dimension by a scale factor of x?
Fill out a table and graph your results.X Perimet
er12345
X Area12345
x
y
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Changing Perimeter and Area1 ft
1 ft1x ft
1x ft
What happens to the area and perimeter of the square when you multiply each dimension by a scale factor of x?
Fill out a table and graph your results.X Perimet
er1 42 83 124 165 20
X Area1 12 23 94 165 25
x
y
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Changing Perimeter and Area
1 ft
1 ft
1x ft
1x ft
What does the area of a square have to do with quadratic functions?
x
y