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Question
My name is Kira Yuta I am in grade eleven in USA
I am studying for my final exam and I came a upon this questions I do not understand. I hope you can help me
I do not understand Part A questions (1,2 and 3) on this page:
http://education.alberta.ca/media/930712/03%20pure30%20feb-09%20skydiving%20stud...
Ok Kira , let's start with section 1 :
We need to write an equation for the parabola . Let's review some
of the fact concerning our graph :
The minimun is located on y=11, & the point of intercept with the
x-axis is +3 & -3 , thus , the equation will be :
y=-x²+9.
Section 2:
We can easily see that the graph of section 1 is shifted 2 units
to the left, thus :
y=-(x+2)²+9.
Sectio 3:
The ice hits the ground at point (x1,0). To find x1 , we substitute
y=0 into the equation of the parabola : y-12.250=-[(4.9)/62.500]x²
we get 12.250=[(4.9)/62.500]x², & we solve for x .
Alon.
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Answers by Expert:
Alon Mandes
Expertise
Kind of questions I can answer : Limits, Derivatives, Integration, Implicit functions, continuousity, differentiation ,Extremum problems, Lagrange multipliers, Gradients, Surface integrals, Multi variables functions ,Multi variables Integrals,Complex variables ,Complex functions, Curves, Trajectory integrals & Vector analyse,Divergence,Rotor & word problems. Kind of question I can't answer : Economics,Combinatorics,infinite series & convergence ,Statistics & Probabilities .
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1. I'm a team member of mathnerds (math site for answering questions)
2. I'm a team member in the Student's Union of the Technion, helping
students who have problems in mathematics.
3. 2 years of experience as a math teacher in college.
4. I give free homework help for high school students in
Mathematics & Physics.
5. I teach part time in collage the subjects : "Digital Signal Processing" , "Random Signals & Noise" ,
"Complex Functions".
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Hi-Tech company : GSM4VOIP ; job possition : Algorythm developer.
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M.A in Mathematics & Bs.c in Electronics.
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