Post on 29-May-2018
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February 07, 2018
Wednesday, February 8, 2018
1. HW Qs?2. Recap SCONICS3. Circles and Parabolas4. Assignment: Sec. 9.1
HAPPY WEDNESDAY!!
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SCONICS!
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Animated Conic SectionsPlane Slices Video
ConicsString Properties
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parabolacircleellipsehyperbola
Recap HW
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Under a Bridge
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The parabolic bridge spanning Sydney Harbour
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Akshardham, New Delhi '... North India's major tourist attraction'
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The St. Louis Arch... not a parabola but a catenary curve.
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Parabolic path of a basketball.
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Parabolic path of a skier.
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Remember freshmen Physics...parabolic path of a ball?
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Are you readyfor some
CONICS??a curve produced when a plane intersects a right-circular cone
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Hmmm...
1. What is the equation of a parabola with vertex (3,0) and directrix x = 7?
2. What is the radius and center of the circle given by the equation (x+2)2 + (y–5)2 = 9?
3. Find the equation for a circle with center (0, 4) that contains the point (2, 2).
4. What is the radius and center of the circle given by the equation 16x2 – 32x + 16y2 + 8y = 0?
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latus rectum
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Reflective Properties
Animated parabolas
2_3Headlights.gsp
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-2
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1. Find focus.
2. Find PF
3. Find y-int
4. Find slope (use focus and point)
February 07, 2018
1. Find focus.
2. Find PF
3. Find y-int
4. Find slope (use focus and point)
February 07, 2018
HWPages 667-670#5, 19,20,31,53,63,71,75,79,81, 85